Router to Router Connection??

My aunt is wanting to use my wifi connection. We both have Linksys wrt54g routers. Is there any way possible for her to configure her router to detect MY wireless network and broadcast my connection in her home. We can see both connections from my macbook but we can't get mine in every room of her house....just certain areas.

Thanks in advance.
Ed

are the dwellings connected, like apartments, or townomes? or are you just next door? would it be easy to run a length of cat6 cable between the two homes?