Old I-Book.

Okay guys, i nedd help. I found (legally) an old I-book. 64 MB ram. it came with a slow as hell "Yellow Dog" OS. i'm now trying to install mac os 9, but when i boot it from the cd (pressing c) and all that i can see is the image of a floppy disk with a question mark. What's my problem?

did what 8 suggested... but the only things it does is to show a folder with the mac os symbol and a question mark... let's use some more drastic methods?