No, I wasn't angry...did not see anything to get angry about
I didn't answer because I thought any answer was obvious...a clean install is predicated on deleting any previous O/S installed on that partition/drive. If the user has MS CDs, that's about as easy as it can get. If the CDs you refer to are recovery CDs of any type, then the situation possibly becomes more complicated.
If the system is one bought from an OEM (Dell, Gateway, etc.), then the owner/user needs to go back to the OEM and see if there is a path for reasonably downgrading from Vista to XP.
But there are any number of links that can provide general guidance on such:http://www.computerworld.com/action/articl...ticleId=9040318http://www.pcmag.com/article2/0,2817,2287685,00.asphttp://www.google.com/search?hl=en&q=d...amp;btnG=Search
The only comment I can make is that...seems to me that it might be a chore finding drivers for components which were not put together to run XP...and I will make my reminder that each install of whatever...requires a valid license to install that O/S on a system (without duplicate installing elsewhere).