1. That sounds like a clock chipping accelerator, it clips onto the logic board and makes the CPU run at a higher clock speed, speeding up the system. They were very common back in the day, but I personally wouldn't use one on a Mac today, as the machines are getting old, and are not as capable of taking abuse like that as they used to.

4. Connect it to a computer (make sure you use the right interface! Make sure you are NOT connecting a parallel Zip drive to a Mac, or a SCSI Zip drive to a PC without a SCSI card fitted!), install the Iomega drivers or run the Iomega Guest application and try inserting a known-good disk.

5. Just install it, exactly the same as making a bootable hard drive.

6. Nobody's going to tell you here on the forums, since thats against forum rules, but there are places out there....Google is your friend.

Welcome to the forum by the way