I bought an iMac from someone, and it included Jaguar install discs. I already have Jaguar install discs, and want to sell the ones that were included with the iMac (don't need both). I have seen eBay auctions for Jag, and some are listed as "full install" and some as "upgrade." Is this the full install, or the upgrade? I have a legitimate teacher edition, and I am not about to try to sell that one (kind of illegal).