Hmmm... take this suggestion only as a suggestion. I'm sure that someone else will be able to respond in more detail.
quit any disk utilities and make sure that no windows is displaying the contents of this drive. then try again." Please! help me! I cant find any way to stop running these programs.
Yeah *kicks self*
now that I re-read the post it makes more sense. It sounds like you're trying to reinstall windows from windows. You might not want to use linux fdisk to repartition your hard drive if this is the case, unless you want a completely new installation of win, which it sounds like you want.
I guess you'd need to make more clear exactly what it is you're trying to accomplish. You said that you want to "straight out format the disk", but it sounds like you're doing that while windows is running.
I'm not an XP user, but I dont think that this is possible in XP, it's not in any other version of win that I've used. Caperjack is right, you have to format your drive from a startup disk, which can either be a win bootdisk - or, like I like to use, a linux disk. you can partition with linux, but you'll probably want to format that partition at the time of installation with the XP disk.
While youre at it though, you might want to make a linux partition and install it also?
just make sure you back up everything you dont want to lose.