Pitch, roll and yaw problem. Solved

Is there an easy(easier) way to do the following with Construct:

My game has 2 objects -

1, sprite(cross-hairs) using the mouse behaviour.

2, 3dbox(gun)

<img src="http://dl.dropbox.com/u/22173473/crosshair.png">

I need the 'gun' to point in the direction of the cross-hairs as i move it around the screen (pitch and yaw)

The current method i am using requires lots of events, and doesn't really work...I need an easier way..........Help!

Link to the cap-

http://dl.dropbox.com/u/22173473/Cross-hairs.cap

Thanks in advance.

I managed to sort it using the Clamp expression.