Call Kelly's Problem
 

Just tried to submit a gallery and got this:

Form Error
The gallery URL you have submitted is not accessable: 301 Moved Permanently

Anyone know why I would get this?

Do you use htaccess rules to appear static when youre not? Something like:

RewriteRule ^gallery/url/here/([A-Za-z0-9_-]+).html$ /gallery.php?id=$1 [L]

? Even then i think it throws a 302.. aside from that I'd have to say its most likely on their end.