No alts for thumbnails

There is no alts for images on gallery pages. To fix that, change line 222 of simplegallery.module from

$cell = l(theme('imagecache', $imagecache, $node->{$imagefield}[$i]['filepath']),file_create_url($node->{$imagefield}[$i]['filepath']), array('attributes' => array('rel' => 'lightbox[' . $term->name . ']', 'title' => $imagecaption), 'html'=>TRUE)); 

to

$cell = l(theme('imagecache', $imagecache, $node->{$imagefield}[$i]['filepath'], $imagecaption), file_create_url($node->{$imagefield}[$i]['filepath']), array('attributes' => array('rel' => 'lightbox[' . $term->name . ']', 'title' => $imagecaption), 'html'=>TRUE));