Projectile Physics

Hey, while working on Istope X, Eric asked me to make a projectile that would circle around the target. I did not know how to do this in scripting (although its probably easier than the way I am doing it :)) so I basically exposed the processTick function to the scripts (like the onCollision code is exposed). If a boolean is set to false then it uses the scripting physics and not the engine physics...

const char* newPos = Con::executef(mDataBlock, 5, "processTick",scriptThis(),posArg, vel, 
Con::getFloatArg(F32(TickMs)));

   dSscanf(newPos,"%f %f %f", x,y,z);
   newPosition.set(x,y,z);

Now it works up to the dSscanf(...) (I also tried calling getWord() using the Con::executef(...) command) but when it runs that function, it comes up with an error in msvcrt.dll and quits Torque.

What am I doing wrong? I have stepped though it and all the strings are in the right format ("float float float")

ARG please help me...

BTW I have taught myself all of this so its probably crappy :)