NOX HELP !!!!! please?!?!?!???!?!!!!??????

ok so I have this game I love, it's an old game, called Nox, and it's kinda like Diablo, but to me it's easier but has a lot more personality. I played through it once, and then my old computer, which had windows 98, died. I bought a brand new computer with windows xp, and ever since, I can install Nox, but it refuses to run or play. ANY HELP anyone can give me would be much appreciated, since I really liked the game, but I only completed it with one of the 3 characters. I should say that my new( 4yrs old) computer is a Dell, and that i have the service packs, and am now running Zone alarm for antivirus, and I have all the service packs and stuff, but I am also not very good with computers. Anybody got any ideas? the help would be much appreciated... Nox was made by wastwood, the guys who once did redalert and C&C and I like it !!!