Index: wp-content/themes/twentyten/attachment.php
===================================================================
--- wp-content/themes/twentyten/attachment.php	(revision 14453)
+++ wp-content/themes/twentyten/attachment.php	(working copy)
@@ -22,7 +22,7 @@
 
 					<div class="entry-meta">
 						<?php
-							printf(__( '<span class="meta-prep meta-prep-author"> By </span> <span class="author vcard"><a class="url fn n" href="%1$s" title="%2$s">%3$s</a></span>', 'twentyten'),
+							printf(__( '<span class="meta-prep meta-prep-author">By </span> <span class="author vcard"><a class="url fn n" href="%1$s" title="%2$s">%3$s</a></span>', 'twentyten'),
 								get_author_posts_url( get_the_author_meta( 'ID' ) ),
 								sprintf( esc_attr__( 'View all posts by %s', 'twentyten' ), get_the_author() ),
 								get_the_author()
Index: wp-content/themes/twentyten/footer.php
===================================================================
--- wp-content/themes/twentyten/footer.php	(revision 14453)
+++ wp-content/themes/twentyten/footer.php	(working copy)
@@ -24,7 +24,7 @@
 
 			<div id="site-generator">
 				<?php do_action('twentyten_credits' ); ?>
-				<a href="http://wordpress.org/" title="<?php esc_attr_e( 'Semantic Personal Publishing Platform', 'twentyten' ); ?>" rel="generator"><?php printf( __( 'Proudly powered by %s.', 'twentyten' ), 'WordPress' ); ?></a>
+				<?php _e( '<a href="http://wordpress.org/" title="Semantic Personal Publishing Platform" rel="generator">Proudly powered by WordPress.</a>' , 'twentyten' ); ?>
 			</div>
 
 		</div><!-- #colophon -->
Index: wp-content/themes/twentyten/single.php
===================================================================
--- wp-content/themes/twentyten/single.php	(revision 14453)
+++ wp-content/themes/twentyten/single.php	(working copy)
@@ -24,10 +24,16 @@
 					<h1 class="entry-title"><?php the_title(); ?></h1>
 
 					<div class="entry-meta">
-						<span class="meta-prep meta-prep-author"><?php _e( 'Posted on ', 'twentyten' ); ?></span>
-						<a href="<?php the_permalink(); ?>" title="<?php the_time(); ?>" rel="bookmark"><span class="entry-date"><?php echo get_the_date(); ?></span></a>
-						<span class="meta-sep"><?php _e( ' by ', 'twentyten' ); ?></span>
-						<span class="author vcard"><a class="url fn n" href="<?php echo get_author_posts_url( get_the_author_meta( 'ID' ) ); ?>" title="<?php printf( esc_attr__( 'View all posts by %s', 'twentyten' ), get_the_author() ); ?>"><?php the_author(); ?></a></span>
+						<?php
+							printf( __( '<span class="meta-prep meta-prep-author">Posted on </span><a href="%1$s" title="%2$s" rel="bookmark"><span class="entry-date">%3$s</span></a> <span class="meta-sep"> by </span> <span class="author vcard"><a class="url fn n" href="%4$s" title="%5$s">%6$s</a></span>', 'twentyten' ),
+								get_permalink(),
+								esc_attr( get_the_time() ),
+								get_the_date(),
+								get_author_posts_url( get_the_author_meta( 'ID' ) ),
+								sprintf( esc_attr__( 'View all posts by %s', 'twentyten' ), get_the_author() ),
+								get_the_author()
+							);
+						?>
 					</div><!-- .entry-meta -->
 
 					<div class="entry-content">
@@ -41,10 +47,10 @@
 							<?php echo get_avatar( get_the_author_meta( 'user_email' ), apply_filters( 'twentyten_author_bio_avatar_size', 60 ) ); ?>
 						</div><!-- #author-avatar -->
 						<div id="author-description">
-							<h2><?php _e( 'About ', 'twentyten' ); ?><?php the_author(); ?></h2>
+							<h2><?php printf( esc_attr__( 'About %s', 'twentyten' ), get_the_author() ); ?></h2>
 							<?php the_author_meta( 'description' ); ?>
 							<div id="author-link">
-								<a href="<?php echo get_author_posts_url( get_the_author_meta( 'ID' ) ); ?>" title="<?php printf( esc_attr__( 'View all posts by %s', 'twentyten' ), get_the_author() ); ?>"><?php _e( 'View all posts by ', 'twentyten' ); ?><?php the_author(); ?> &rarr;</a>
+								<a href="<?php echo get_author_posts_url( get_the_author_meta( 'ID' ) ); ?>" title="<?php printf( esc_attr__( 'View all posts by %s', 'twentyten' ), get_the_author() ); ?>"><?php printf( esc_attr__( 'View all posts by %s &rarr;', 'twentyten' ), get_the_author() ); ?></a>
 							</div><!-- #author-link	-->
 						</div><!-- #author-description -->
 					</div><!-- .entry-author-info -->