[Plugin: SEO Ultimate] Link mask generator generates 404's

Hello there,

I’m quite new to WordPress. I’m running 3 sites since 2 months, well one I installed for a friend, two are my own.
I have a server running Debian 6, with MySQL and Apache 2.2.16.
I have configured a few vHosts, among them the two WordPress sites (separate sites). Both of these sites have the SEO ultimate plugin (latest version) installed. On the site I first set up ( http://www.top10vpn.com ), everything works fine. On the second ( http://www.whyvpn.com ), I can’t get the Link Mask Generator to work, all links come back with 404’s from my own site. I already googled the problem and searched the forum, but am not able to find a solution. Someone stated to change the hostname order (for Nginx that was), tried that in apache, did not work.

Ps. current aliases (directories) are VPNservice and visit .