Custom Photo Gallery Pagination

Hello,

This is my first post here and I want to seize this opportunity to thank everyone of you involved in this great project!

My question is very simple and a solution would be very, very much appreciated:

I’m trying to develop a WP 2.0.2 plug-in, a customized photo gallery. I know there are plenty outhere already but I need to do my own. So, everything is working just fine, the display, dashboard management, etc … but the pagination.. If I strip my code of all WP header, sidebar, footer and all, the pagination works OK, otherwise it doesn’t. I assume it’s about the WP functions blending with my own but can’t tell for sure since I’m a newbie PHP-eer and this is of course my first plug-in.
The code is here: http://www.eclipsedesign.net/samples/wp-plugin.txt

Thanks a million for your patience. Any suggestion is welcomed and appreciated.

Regards,
Rem.