http://www.aginsinn.com/FAQ.html
sadly.. this is one of the best web-sites still left standing about "Hero Quest"
http://www.schtuff.org/bunnz/index.php?page=game&id=14 .. and THIS should be the so called "PC version" .. though I find it to be a strange and clunky approximation of the game, even for the time.
The point I'd like to note is that this board game is not linear, per se.. there isn't typically only one direction to go.. and based upon that reason.. it's not so much a board-game where you land on a square that makes you "go back 3 spaces" or anything like that. Rather, you sometimes find yourself obstructed by pit-falls, spear traps, and other nasty things.
Imagine the movement similar to NetHACK rather than a Chutes-n-Ladders.. only turn based.. (probably.. hehe) .. well .. that's how I'd picture it at least. NYAA!