Help with dual boot please...

I am trying to dual boot windows XP & win. 7 on one hard drive after 7 is already installed... I created a separate partition on my c: drive and then put in the XP setup disk & restarted. Install went fine, I formatted the new partition to ntfs, but now my PC will only boot up XP. The OS loader never comes up & when I pull up my system properties in XP control panel, it doesn't show any other OS in the dual boot dropdown box.
Any help is greatly appreciated.

That`s because you installed XP last. Use Easy BCD to rebuild the bootloader.

http://www.sevenforums.com/tutorials/8057-dual-boot-installation-windows-7-xp.html