|"pooped in the server 2008 disk means ?"|
I already explained what you SHOULD have done, but you apparently didn't do it that way. You should have booted into Windows XP. Then you should have taken the 2008 disk & put it in the CD drive. A window would have popped up asking you what you want to do. At that point, you should have directed it to install 2008 onto the 2nd partition. Had you done it that way, you wouldn't even be here asking questions.
To fix the bootloader so that you have the choice to boot into XP or 2008, use Easy BCD. I already posted a link to the EasyBCD manual, did you read it? If you can't understand what we're telling you, take your computer to someone who knows what they're doing.