2
4thefort used to be run by HughG, he made a few themes for xoops, but then lost interest for a reason I shall not go into, but since his sites closed down and he released his domain names, I can only assume some kind of domain name company has since bought them up to try and generate revenue from them.
If you no longer wish to link from your theme, goto:
xoops_dir/themes/4theforttheme/theme.html
In the html code you can delete the footer copyright, in the spirit of OS, you could still leave the credits in for HughG/4TheFort, but take out the url link to this website.
If your still stuck you could PM me, and i will give u msn so we can discuss further.
Hope this is of some help.