As I mentioned before, I know of people who have done it - so it's possible, but it is largely a matter of luck.
If you decide to start a new game, you might want to download and install v1.1, since it's free to registered users, uses the same registration code, and solves the builder training issue! Besides, there are other fixes and improvements as well.

Make sure that you want to start a new game before you install it, though, since it will delete any v1.0 savegame that it finds. You can get v1.1 here:
http://www.ldw.com/zips/vs1_1.zip