how can I connect a vista laptop to existing wireless home network with other 3 xp machines.

I followed googled info but keep chasing my tail as all effords end trying to make an internet connection.

My router is Negear wired & wireless capable in which 2 PCs are wired & an Acer netbook wireless connected, all 3 XP machines.



Hewlett-Packard Compaq Presario CQ61 Notebook PC
2.00 gigahertz Intel Pentium Dual-Core
160gb HD, 3GB Ram
32 operating system