Index: wp-admin/includes/plugin-install.php
===================================================================
--- wp-admin/includes/plugin-install.php	(revision 18555)
+++ wp-admin/includes/plugin-install.php	(working copy)
@@ -233,7 +233,7 @@
 }
 
 /**
- * Display plugin information in dialog box form.
+ * Display plugin information in plugin list table.
  *
  * @since 2.7.0
  */
@@ -261,7 +261,8 @@
 	if ( empty($section) || ! isset($api->sections[ $section ]) )
 		$section = array_shift( $section_titles = array_keys((array)$api->sections) );
 
-	iframe_header( __('Plugin Install') );
+	echo '<div id="plugin-information">';
+	echo "<h2>$api->name</h2>\n";
 	echo "<div id='$tab-header'>\n";
 	echo "<ul id='sidemenu'>\n";
 	foreach ( (array)$api->sections as $section_name => $content ) {
@@ -302,7 +303,7 @@
 		?>
 		</p>
 		<?php endif; ?>
-		<h2 class="mainheader"><?php /* translators: For Your Information */ _e('FYI') ?></h2>
+		<h3 class="mainheader"><?php /* translators: For Your Information */ _e('FYI') ?></h3>
 		<ul>
 <?php if ( ! empty($api->version) ) : ?>
 			<li><strong><?php _e('Version:') ?></strong> <?php echo $api->version ?></li>
@@ -324,7 +325,7 @@
 <?php endif; ?>
 		</ul>
 		<?php if ( ! empty($api->rating) ) : ?>
-		<h2><?php _e('Average Rating') ?></h2>
+		<h3><?php _e('Average Rating') ?></h3>
 		<div class="star-holder" title="<?php printf(_n('(based on %s rating)', '(based on %s ratings)', $api->num_ratings), number_format_i18n($api->num_ratings)); ?>">
 			<div class="star star-rating" style="width: <?php echo esc_attr($api->rating) ?>px"></div>
 			<div class="star star5"><img src="<?php echo admin_url('images/star.png?v=20110615'); ?>" alt="<?php _e('5 stars') ?>" /></div>
@@ -357,13 +358,18 @@
 			$display = ( $section_name == $section ) ? 'block' : 'none';
 
 			echo "\t<div id='section-{$san_title}' class='section' style='display: {$display};'>\n";
-			echo "\t\t<h2 class='long-header'>$title</h2>";
+			echo "\t\t<h3 class='long-header'>$title</h3>";
 			echo $content;
 			echo "\t</div>\n";
 		}
 	echo "</div>\n";
-
-	iframe_footer();
-	exit;
+	echo "</div>\n";
+	
+	if ( isset( $_REQUEST['no-chrome'] ) )
+		exit;
 }
-add_action('install_plugins_pre_plugin-information', 'install_plugin_information');
+if ( isset( $_REQUEST['no-chrome'] ) ) {
+	add_action('install_plugins_pre_plugin-information', 'install_plugin_information');
+} else {
+	add_action('install_plugins_plugin-information', 'install_plugin_information');
+}
\ No newline at end of file
Index: wp-admin/includes/class-wp-plugin-install-list-table.php
===================================================================
--- wp-admin/includes/class-wp-plugin-install-list-table.php	(revision 18555)
+++ wp-admin/includes/class-wp-plugin-install-list-table.php	(working copy)
@@ -187,9 +187,9 @@
 			$author = wp_kses( $author, $plugins_allowedtags );
 
 			$action_links = array();
-			$action_links[] = '<a href="' . self_admin_url( 'plugin-install.php?tab=plugin-information&amp;plugin=' . $plugin['slug'] .
-								'&amp;TB_iframe=true&amp;width=600&amp;height=550' ) . '" class="thickbox" title="' .
-								esc_attr( sprintf( __( 'More information about %s' ), $name ) ) . '">' . __( 'Details' ) . '</a>';
+			$action_links[] = '<a href="http://wordpress.org/extend/plugins/' . $plugin['slug'] . '/" 
+								class="infoinline" name="' . $plugin['slug'] . '" 
+								title="' . esc_attr( sprintf( __( 'More information about %s' ), $name ) ) . '">' . __( 'Details' ) . '</a>';
 
 			if ( current_user_can( 'install_plugins' ) || current_user_can( 'update_plugins' ) ) {
 				$status = install_plugin_install_status( $plugin );
Index: wp-admin/js/plugin-install.dev.js
===================================================================
--- wp-admin/js/plugin-install.dev.js	(revision 18555)
+++ wp-admin/js/plugin-install.dev.js	(working copy)
@@ -1,42 +1,26 @@
-/* Plugin Browser Thickbox related JS*/
-var tb_position;
 jQuery(document).ready(function($) {
-	tb_position = function() {
-		var tbWindow = $('#TB_window'), width = $(window).width(), H = $(window).height(), W = ( 720 < width ) ? 720 : width, adminbar_height = 0;
-
-		if ( $('body.admin-bar').length )
-			adminbar_height = 28;
-
-		if ( tbWindow.size() ) {
-			tbWindow.width( W - 50 ).height( H - 45 - adminbar_height );
-			$('#TB_iframeContent').width( W - 50 ).height( H - 75 - adminbar_height );
-			tbWindow.css({'margin-left': '-' + parseInt((( W - 50 ) / 2),10) + 'px'});
-			if ( typeof document.body.style.maxWidth != 'undefined' )
-				tbWindow.css({'top': 20 + adminbar_height + 'px','margin-top':'0'});
-		};
-
-		return $('a.thickbox').each( function() {
-			var href = $(this).attr('href');
-			if ( ! href )
-				return;
-			href = href.replace(/&width=[0-9]+/g, '');
-			href = href.replace(/&height=[0-9]+/g, '');
-			$(this).attr( 'href', href + '&width=' + ( W - 80 ) + '&height=' + ( H - 85 - adminbar_height ) );
-		});
-	};
-
-	$(window).resize(function(){ tb_position(); });
-
-	 $('#dashboard_plugins a.thickbox, .plugins a.thickbox').click( function() {
-		tb_click.call(this);
-
-		$('#TB_title').css({'background-color':'#222','color':'#cfcfcf'});
-		$('#TB_ajaxWindowTitle').html('<strong>' + plugininstallL10n.plugin_information + '</strong>&nbsp;' + $(this).attr('title') );
-		return false;
+	$('a.infoinline').click(function(e) {
+		if ($('#plugin-information').length < 1 ) {
+			$('<tr id="plugin-information"><td colspan="4"><div id="plugin-loading"><img src="' + ajaxurl.replace( '/admin-ajax.php', '' ) + '/images/loading.gif" alt="Loading..."></div></td></tr>').insertAfter($(this).parents('tr'));
+			
+			$('#plugin-information td').load(ajaxurl.replace( '/admin-ajax.php', '' ) + '/plugin-install.php?tab=plugin-information&no-chrome=1&plugin=' + $(this).attr('name'), function() {
+				$('#plugin-loading').remove();
+				$(this).wrapInner('<div style="display: none;"></div>').parent().find('td > div').slideDown('slow');
+			});
+			
+			$(this).text('Close Details');
+		} else {
+			$('#plugin-information td > div').slideUp('slow', function() {
+				$('#plugin-information').remove();
+			});
+			
+			$(this).text('Details');
+		}
+		
+		e.preventDefault();
 	});
-
-	/* Plugin install related JS*/
-	$('#plugin-information #sidemenu a').click( function() {
+	
+	$('#plugin-information #sidemenu a').live('click', function(e) {
 		var tab = $(this).attr('name');
 		//Flip the tab
 		$('#plugin-information-header a.current').removeClass('current');
@@ -44,10 +28,11 @@
 		//Flip the content.
 		$('#section-holder div.section').hide(); //Hide 'em all
 		$('#section-' + tab).show();
-		return false;
+		
+		e.preventDefault();
 	});
 
 	$('a.install-now').click( function() {
 		return confirm( plugininstallL10n.ays );
 	});
-});
+});
\ No newline at end of file
Index: wp-admin/plugin-install.php
===================================================================
--- wp-admin/plugin-install.php	(revision 18555)
+++ wp-admin/plugin-install.php	(working copy)
@@ -29,8 +29,6 @@
 
 wp_enqueue_style( 'plugin-install' );
 wp_enqueue_script( 'plugin-install' );
-if ( 'plugin-information' != $tab )
-	add_thickbox();
 
 $body_id = $tab;
 
@@ -49,12 +47,14 @@
 include(ABSPATH . 'wp-admin/admin-header.php');
 ?>
 <div class="wrap">
+<?php if ( 'plugin-information' !== $tab ) { ?>
 <?php screen_icon(); ?>
 <h2><?php echo esc_html( $title ); ?></h2>
 
 <?php $wp_list_table->views(); ?>
 
 <br class="clear" />
+<?php } ?>
 <?php do_action('install_plugins_' . $tab, $paged); ?>
 </div>
 <?php
Index: wp-admin/css/plugin-install.dev.css
===================================================================
--- wp-admin/css/plugin-install.dev.css	(revision 18555)
+++ wp-admin/css/plugin-install.dev.css	(working copy)
@@ -1,3 +1,8 @@
+#plugin-loading {
+	padding: 5px 0;
+	text-align: center;
+}
+
 /* NOTE: the following CSS rules(.star*) are taken more or less straight from the bbPress rating plugin. */
 div.star-holder {
 	position: relative;
@@ -40,7 +45,11 @@
 	height: 19px;
 }
 
-/* Header on thickbox */
+#plugin-information td {
+	background: #fff;
+	padding: 0;
+}
+
 #plugin-information-header {
 	margin: 0;
 	padding: 0 5px;
@@ -58,6 +67,10 @@
 	bottom: -1px;
 }
 
+#plugin-information .updated p {
+	margin: 0.5em 0;
+}
+
 /* Install sidemenu */
 #plugin-information p.action-button {
 	width: 100%;