hello all bros

I have a problem and I need help.
PS3 wired to riger db108.
Nat2 connection.
PSN okay, browser okay, YouTube fast some more.
Cod:mw2 stuck at searching matchmaking server.

Based on all the previous post, the modem can work but the setting up part on the router page is what i cannot do because I'm noob at this ;p

Anybody can provide screenshots on how to set up the LOUSY tmnet riger db108 on the router page '192.168.1.1' for the DMZ and port forwarding?
Because the portforward.com guide and screenshots are for riger db102 ' the old modem'. And I think tmnet changed the whole router page interface...