EMachine W3623 Vista not accepting router

My wife just purchased an eMachine W3623 with Vista Home Basic at Walmart last month.
eMachines W3623 Desktop PC w/ 17" LCD Monitor, Intel Pentium 4 processor 641 with Hyper-Threading technology

• 17" widescreen LCD display
• 3.2 GHz Intel Pentium 4 processor 641
• 512 MB RAM, 160 GB hard drive
• DVD Burner, Windows Vista Home Basic

I wanted to network with two other eMachine computers already onlilne with Network Everywhere Router 401 by Linksys. Problem is Network Everywhere 401 router said it wasn't compatable with Vista and so her new computer won't go on line.

It is hooked up to the Internet Explorer but it still is not online.

I even purchased at Walmart a
Linksys WRT54G Wireless-G 54Mbps Broadband Router All-in-one Internet-sharing Router, 4-port Switch, and Wireless-G (802.11g) Access Point Wireless data rates up to 54Mbps -- 5 times as fast as Wireless-B (802.11b), but also interoperable with Wireless-B devices (at 11Mbps) , AND STILL NO INTERNET!

What do I do? Is there a Service Pack that needs downloaded or something?

Please help,

Frustrated dad
Loren Graham
lorengrah@windstream.net

I don't want to Accept this solution