Cannot create Filters?

I had installed and used gtk-gnutella for many moons, but the other day I had to reload my Fedora 8 box and did not backup up my gnutella filters. I re-installed the application and it seems to work fine, but when I go to filters, I cannot seem to create any new filters. I see the "Create filter" and read though the filter guide, but I could not find any solution for not being able to create any new filters. I know I'm doing something incorrectly, can someone here nudge me in the right direction?

Running latest gtk-gnutella on a Fedora 8 box. I have access to searches and can download and upload files. Just seem to have issues with creating filters.

Quella

searches - bottom edit filters