If you want to upgrade to XP, Just insert the Windows XP disk into your CDROM Drive. When you choose to install, choose to upgrade your current installation. It will ask you for your product key. The whole installation is for the majority automated. It will however ask you a few questions along the way, something that even someone like you could comprehend.
I am a total computer moron! Don't laugh, but I need to download XP, I currently have ME. I have the disk, but I need step-by-step instructions on how to do this. Don't say, "Download all of your files onto a disk," because I really, really don't know how to do this. Seriously,-- "Step 1: Turn on your computer. Step 2:...Well, you get the idea. Please help, someone! Much appreciated!!!!!