bad install of vista

[w00t]

I partioned my hd so i could dual boot vista and xp pro. after the install i go to try to boot into vista and i get the blue screen than i check my new partion and its installed on my c drive when its supposed to be in my d drive and i set it to install it in d drive i rember seeing it and everything. As of right now i just want to take all the vista stuff off my c drive and keep it off it. maybe try another install on the d drive but it hasnt been going well so probably dont want to take the chance. i just want to know how to remove all this vista stuff that is in my c drive off because it ask's if i want to boot in pro or vista.