I think there's supposed to be page links on the "Interfaces by [User]," but nothing's actually there except a left angle bracket. :-/
You can see it on my listing page:
http://www.eq2interface.com/list.php?skinnerid=55671
(I have 32 files uploaded, but only 25 are listed on that page with no way to see the other 7.)
The pagination works fine on my portal's UI listing:
http://www.eq2interface.com/portal.php?id=5&a=list