This is pretty long story, but to sum it all up, i tried upgrading from win2k to winxp but accidentally just installed winxp on the partition where I already had installed win2k. I realized this too late, finished the install, then booted up winxp. After re-installing several programs i restarted my computer where I saw that I had the option of booting into winxp OR win2k.

I was surprised to say the least...I had no idea that you could dual boot off the same partition. So is this supposed to happen or did I just accidentally pull off the impossible?