Hey Rod... I know exactly the one you're talking about. I have it here right in front of me at the moment but I can't install it because my system doesn't meet the requirements. A friend of mine uses it though and I think it's great. There is a little bit of a learning curve to it but nothing too much. Music Creator 5 is by Cakewalk by Roland. It says it can edit 100 tracks of audio and midi, so I recon it would be right up your alley lol.

I'm lucky enough to get the full program from a mate but i'd definately check out the free version before I bought it.