If you have access to wildfire 2 , then I would highly recommend that you run through this tutorial from PTC
That tutorial is meant for new users, (no previous proe experience) but after going through the phone modeling exercise you'll be comfortable in Wildfire 2. I'd been running proe since version 10 and was struggling with wildfire 2 (proe version 25) and that exercise helped me tremendously.
Also, many companies skipped wildfire 1, it was too slow and crashed several times an hour for me, so the company i was at stayed with 2001 until wildfire 2 came out. Most companies that I know followed the same pattern.