Ok, So you are saying I have to install the 10.1 and then upgrade to 10.3. That would make it a long process to install. But if that is the case will try that route. Thanks.
I believe you should be able to just install Classic off the original disks as part of the "optional installs". You shouldn't have to install 10.1 at all (I don't think).
I know there was a way to just get Classic off the disks without having to install the whole package.
If the version of 10.3 you have was purchased retail, I would bet it doesn't have Classic on the disk(s). Note that the other poster was referring to the 10.3 disks that came with the computer.
Edit: I just took a look at the two "Software Installation Disks" that came with my daughter's iBook. On disk one, there is a separate installer labeled "Install Applications & Classic Support". That's what you'd need to run.