You need to determine if your computer has the resources to even use Vista and which Vista you want to install.
Check your computer manufacturer's website for drivers for your paticular computer.
The link below lists minimum
requirements for using Vista. http://www.microsoft.com/windows/windows-v...quirements.aspx
This small software tool will scan your computer and create an easy-to-understand report of all known system, device, and program compatibility issues, and recommend ways to resolve them. Upgrade Advisor can also help you to choose the edition of Windows Vista that best fits the way you want to use your computer.http://www.microsoft.com/windows/windows-v...de-advisor.aspx
Just my opinion, unless you have a compelling reason to switch to Vista, I would keep XP.
Edited by buddy215, 24 December 2008 - 09:28 AM.