It sounds like you might need to create an installation CD somehow. I don't know how you would do that on the PC.

It's easy to make boot disks on old Macs for older hardware, but as the years have gone on, it's gotten a little more difficult. Here's how to make classic Mac OS 9 and early Mac OS X boot media on ...

With OS X 10.7 Lion now available on the Mac App Store, a lot of people will be upgrading their Macs today. Even though the install process makes Lion the easiest upgrade yet, though, there’s a right ...