I just reinstalled XP on my computer. During this process XP reformatted my hard drive. But now when I start my computer, I get an option at boot up to choose which version of XP I want to use. I'm confused. Did I just install another version of XP? How could I tell if I did? How would Uninstall the old copy? Or is it just a glitch in the boot up menu?

I have a Dimension 8200, 1.8 ghz, BIOS ao3.

Thanks for any help!