I'm not real clear on what you're trying to do...
I have a wireless router and two networked computers in one room...
my roommate has a wireless router and several networked computers in another room.

I was able to flash the firmware of my router to get it to connect to the other wireless router so we could share the internet connection.

If that sounds like something that might be usefull to you, you can find out more about it here:

http://www.dd-wrt.com/wiki/index.php?title=WDS_Linked_router_network> click