2 Linksys routers creating a problem with server 2003

I have a linksys router (WRT54G) setup and connected to my cable modem. There is also a windows server 2003 connected too (wired). I just bought a linksys router (WRVS4400N) This (for the moment) is just connected acting as an access point (no dhcp) and is also wired to the first linksys router. When I pluged the new router in my interent on the wired server just basicly shut off. More specificaly using bit-torrent stoped working. It said that the port may not be forwarded (it works fine without forwarding the port when there was only 1 router). Any help with this would be appreicated.

I hope I made this relatively clear.