Installing a HD into an iBook...

Which iBook is this?

If it's a 12" iBook G4 then look here (Don't know if it's accurate with the newest Rev.)

But don't tell anyone where you found it

If that file from Thrawn's post does not help you, I'd recommend http://www.pbfixit.com/. They have great disassembly instructions, and I believe they can point you to the parts you need should you, well, need them.

In my opinion you are better off taking it to an Authorized Tech to do this job. You wouldn't imagine how many people I have try this then bring it to me in a bucket with all the pieces asking for it to be put back together.

jon

I also recommend http://www.pbfixit.com/ it has great guides on how to upgrade almost every apple laptop i.e. optical drive, hard drive, screen, keys etc.