Bootcamp attempt gone wrong - Urgent HELP

I attempted to do a partition of Windows XP on my new MacBook. Everything went smoothly until after the installation was completed. It stated that it was successful but would not boot into Windows. In fact, Leopard wouldn't even start up. At this point I'm pretty sure I've wiped the os x in the process. Neither XP or Leopard could start up. I then inserted the Mac Os x installer DVD and went from there. Went through the language and user agreement. When it finally ask me to select a volume, there was nothing there to boot from. At this point, I'm just stumped.

Right now I'm not concerned about recovering my files, I just want the os to actually start again.