Index: wp-admin/includes/template.php
===================================================================
--- wp-admin/includes/template.php	(revision 17378)
+++ wp-admin/includes/template.php	(working copy)
@@ -622,8 +622,9 @@
 	$minute = '<input type="text" ' . ( $multi ? '' : 'id="mn" ' ) . 'name="mn" value="' . $mn . '" size="2" maxlength="2"' . $tab_index_attribute . ' autocomplete="off" />';
 
 	echo '<div class="timestamp-wrap">';
+	echo '<div><input type="radio" name="publish-when" value="publish-when-now" id="publish-when-now" checked="checked" /> <label for="publish-when-now">' . __( 'Immediately' ) . '</label></div>';
 	/* translators: 1: month input, 2: day input, 3: year input, 4: hour input, 5: minute input */
-	printf(__('%1$s%2$s, %3$s @ %4$s : %5$s'), $month, $day, $year, $hour, $minute);
+	echo '<div><input type="radio" name="publish-when" value="publish-when-later" id="publish-when-later" /> <label for="publish-when-later">' . sprintf( __( '%1$s%2$s, %3$s @ %4$s : %5$s' ), $month, $day, $year, $hour, $minute ) . '</label></div>';
 
 	echo '</div><input type="hidden" id="ss" name="ss" value="' . $ss . '" />';