Problem with Windows on my MacBook

[Koblin]

I recently bought a MacBook, and after a while I tried to install Windows Vista using Boot Camp. Then I realised that I wanted to use a different install disk for Windows, but when I tried to cancel the installation it just restarted it. I then chose to install with the disc I had (there is no eject button on the dvd drive on the macbook), but now I can't get it back to MacOS. I also tried inserting the MacOS disc that came with the macbook. How do I get MacOS back on my MacBook?
The manual tells me to install bootcamp drivers, but it tells me it's incompatible on this computer model

[editline]03:04PM[/editline]

I found out that I can reinstall MacOS by holding down C

[editline]03:11PM[/editline]

I can start MacOS now, but Boot Camp still isn't working on Windows

[editline]03:46PM[/editline]

Nevermind. I don't really care, when it works anyway