I have the wrb-1310, a speedtouch 516 and an Asus PCE-N13 Adapter card, running on win 7 64bit.
I turned off the modem and router, connected the modem to the router in the WAN port and turned on the router. Waited 30 seconds and then plugged the PC into port 1 of the router and then turned on the router. Now when I go to check the wirless status in Network Connections I just see this:
I try to enable the connection but it just defaults back to disabled.
Why are you using an ADSL router (which has a built in modem) with a separate modem as well ? If the service you are receiving is Cable internet an ADSL router may not work -- you'll need a router designed to work with a separate modem, usually these are referred to as cable routers.
If you have ADSL service, just set up the Speedtouch and dump the separate modem.