You must call
phy enable debug before anything else to do with physics, just to be certain.
Then to see the physical geometry you can use the
remote debugger which can be found in
Start->Program Files->The Game Creators->Expansion Packs->Dark Physics->Tools->Debugger. If you fire this up before you run your project (with debug enabled) then run your project in windowed mode you can see what is happening in the physics world. Warning, the physical geometry in the debugger is flipped along the X & Z axis because the debugger uses a different handed cartesian co-ordinate system to GDK/DBP/DX this doesn't mean your actual physics geometry is screwed, so don't be alarmend when you see your world back-to-front.
Much good work is lost for the lack of a little more.