query_posts, post per page using wp_pagenavi

Hi

I’m wondering if anyone can help?

I’m trying to add page navigation to my archive and category pages (both using the same template), I’ve managed to get it partially working, and have managed to code it so that I only have six posts per page, but when I click onto the second page nothing appears and there should be at least one more post (I’m working on a dummy site at the moment, before I integrate it into the live site).

Where am I going wrong? Here is the code for the page:

[code moderated according to forum rules - please use the pastebin]

and the link for the page in question is http://www.jupperpeep.com:/test/2011/04/

Thank you