Home Hub 4 Replacement - Where do I enter "ASDL User Details"

Hi Guys,

I am looking to replace the BT Home Hub with a WRT54GS running Shibby's version of tomato. Unfortunately, it seems that plugging it into my home hub causes it to fall over and stop all internet traffic working properly. By taking the same configured WRT off to work and tapping the company network with it, the VPN and the whole thing works perfect.

I cant find the username and password area on the WRT, so I can push the home hub credentials over?

Can anyone assist?

James