There wasn't a Pro in 2001, they came out in 2002. So either it's at least a 2002 or its just the previous model (which although less high tech, were I think more sturdy.
I'll leave someone else to tell you what it's going to cost you to sort, I really don't know.
If it was more money I'd say don't bother at all. If it's the 2002 pro, in my view the bike was a dog, changed drastically the following year to make it fit for purpose.
Edit: I suppose there was a Pro model in 2001, it was the 2002 model which came out at the end of 2001. Same applies above.
Edited by bikespace, 20 February 2010 - 11:55 PM.