Unless the hard drive is bad you do not need to replace it at all...just follow these instructions to clean install Windows XP, noting step 10b.
However, that may be a bit drastic at this point, depending on what exact problems you're facing. Reinstalling XP would cause you to lose your current documents, settings, and installed software, forcing you to start from scratch. If you describe the problems you're encountering here we may be able to help address them instead of assist with the more dramatic reinstall option.
My computer crashed because I messed up.
At first it gave me a blue screen now it won't boot at all.
I need to know if I replace the old small size 60gb hard drive with a new bigger hard drive
how do I load windows xp onto a new "blank" HD?
I'm old and not to smart.
the computer store wants $55 an hour to clean and restore and I can get a new 160gb for $45.
Thanks for your help