there's some 3D open source libraries here:
http://www.flashsandy.org/about
i found it looking for Flash cubic rooms, but their AS2 one was a bit crp*py
its looking very doubtful I'll be able to get CS3 in the near future and i've run out of pc's to run the trial, life is getting in the way as far as spare pennies goes and the daughter can't get the upgrade on her student discount
:?