Vehicle mounting problems

function serverCmdMountVehicle(%client)
{
   %testMnted = %client.getControlObject();
   //Determine how far should the picking ray extend into the world?
   %selectRange = 3;
   // Only search for vehicles
   %searchMasks = $TypeMasks::vehicleObjectType;

   %pos = %client.player.getEyePoint();

   // Start with the shape's eye vector...
   %eye = %client.player.getEyeVector();
   %eye = vectorNormalize(%eye);
   %vec = vectorScale(%eye, %selectRange);

   %end = vectorAdd(%vec, %pos);

   %scanTarg = ContainerRayCast (%pos, %end, %searchMasks);

   // a target in range was found so select it
   if (%scanTarg && %testMnted != %client.vehicle)
   {
      %targetObject = firstWord(%scanTarg);
      %col = %targetObject; 
      %obj = %client.getControlObject();
      echo("Found a vehicle: " @ %targetObject);

      // Mount vehicles
      %this = %col.getDataBlock();

      // Only mount drivers for now.
      //%node = 0;
      %node = findEmptySeat(%col, %this);
      if(%node >= 0)
      {
         %col.mountObject(%obj,%node);
         %obj.mVehicle = %col;
         %obj.client.setcontrolobject(%col);
         %curVehicle8 = %client.getControlObject();
         %curVehicle8.parkingBrake = false;
      }
   }
   else
   {
      echo("No object found/Try dismount");
      if (!%scanTarg)
      {
         %curVehicle = %client.getControlObject();
         %curVehicle.parkingBrake = true;
         %curVehicle.setGear(0);
         commandToClient(%client,'getOut',%client);
         %client.setControlObject(%client.player);
      }
   }
}

function findEmptySeat(%vehicle, %vehicleblock)
{
   for (%i = 0; %i <  %vehicleblock.numMountPoints; %i++)
   {
      %node = %vehicle.getMountNodeObject(%i);
      if (%node == 0)
      {
         return %i;
      }
   }
   return -1;
}