Heeee ... The only NFR "promo" copies I've ever seen pre-bundled on a Mac were copies put there by Hong Kong based Mac retailers (they all used to do it) who regularly used such practices as incentives to attract buyers ... "yes, we will give you all this software for free boss, photoshop, fcp, whatever you want, special license for you, mo men tai ahhh" ... all completely illegal of course. Not saying thats what you've got there, but as Jeff notes, do try to get a full retail licensed version going forward, that way, if and when you go for an upgrade to an Intel based Mac later down the line you'll be well placed to pick up an upgrade to whatever is by then the latest and greatest (and apparently kickass and awesome) FCP version available :-).
Good luck on the search
Andy