Vista Troubleshooting links

Windows Vista recommended system requirements:-

http://www.microsoft.com/windows/products/windowsvista/editions/systemrequirements.mspx

Windows Vista: Networking :-

http://windowshelp.microsoft.com/Windows/en-US/networking.mspx

Troubleshoot network connection problems :-

http://windowshelp.microsoft.com/Windows/en-US/help/33307acf-0698-41ba-b014-ea0a2eb8d0a81033.mspx

Network Map in Windows Vista does not display computers that are running Windows XP:-
http://support.microsoft.com/kb/922120