What chipsets does the Linksys wmp54g v4.1 have? I've tried searching the internet for the answer, but haven't gotten anywhere.

Also, I need some help on what to do once I find out what chipsets it has. I know it has to do with ndiswrapper, or something like that, but I'm new to Linux, so I'm totally lost.

I'm running Ubuntu 7.04, by the way. Is there a step-by-step online guide on what I need to do?

(edit)

I forgot to mention that the router that it's going to connect to is the same type of router (a Linksys Wireless-G router). It's currently running WPA security.

sudo lspci -v

Look for the details on the wireless card an post the relevant bits (not the whole, stinking thing).

There are about 1000 HOWTOs for NDISwrapper & Ubuntu. Start with the NDISwrapper docs.