Read http://www.48bitlba.com and other places but just install SP3 and then use disk management to create another partition, format that and you're done.
My hard drive crashed and I replaced it with a new 500G hard drive. I reloaded Windows XP and I'm using the new hard drive as my main drive. It only shows that I have 137G Total size of the drive. How do I get it see all of the 500G hard drive?