Here is my set up;
All PC's run XP Home (I do have a copy of XP Pro but don't really want to reinstall on all PC's tbh!!!)
Workgroup name is : COWAN
Names;
PC#1 = DOWNSTAIRS PC
PC#2 = MATT
PC#3 = BRO (not surrently linked to this workgroup as I haven't bothered to run wizard till I get the other two to talk to each other)
Here is the router modem I am using (click pic for details)
Dan if I buy you beer will you come to my house and fix it all