is their any difference at all i must know please.

One is silver and one is black?

that's it?

Lots of differences between the pre 00 and 01+. The whole tail is pretty different.
04 - all the fairing lugs were welded in.
The oil cooler mount too was added 04+.

Cool.
Buddha.

No that's not it.... As Buddha said there is lots.... But that's what I could think of at the time 

... Sometimes if I put in my version of help..... The real helpers notice and race to the rescue! 

Hard to think of something Buddha didn't cover but did remember one.  The rake was changed a half degree from 25.5* to 25.0* for 01 and later frames, a tad closer to sport bike territory. 

Nikko, you're swapping frames because of a title problem, correct? If that's the case, many of your parts will swap over. If I'm not mistaken, you'll need the late model seat, tank, and tail plastics.

I think you can run an older tank..As there are people that run the newer slightly larger tanks on older GS's