Raschmidt,

All you have to do is edit your "hosts" file to allow machines that are behind your router/firewall to redirect to your webserver ip address. In Windows XP this file can be found in C:\WINDOWS\System32\drivers\etc directory.

Simply add two entries-

AFTER the line that reads:

127.0.0.1 localhost


ADD:

192.168.x.x yourdomain.com
192.168.x.x www.yourdomain.com


(where 192.168.x.x is the ip address your router assigned to your webserver running XOOPS)

(where yourdomain.com and www.yourdomain.com is your actual domain name with and without the www)

edit the file with notepad and save and your all set,
do this on each machine on your network, but not necessary on the actual server machine.

hope this helps, it does for me.

CHEERS