The Microsoft Team Manager Converter utility for Microsoft Project 2000 lets you import data stored in your Microsoft
Team Manager 97 file to a Microsoft Project 2000 file in order to get you started using Microsoft Project 2000.
I use HD Projette (http://www.highlydeveloped.net/home.aspx). It's
technically shareware, but the last time I used it I think I just got
nagged, but otherwise was still able to view the files. Full license is
a very reasonable $10 if you don't like being nagged.