Help with editor

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hi all im trying to make a level editor and what im trying to do is add something like this: [url]http://www.freewebs.com/madmanstudios/Image2.jpg[/url]

i have tryed to get this to work and failed many times here is just 1 of the methods i have tryed :
Function DrawXYZ(entity)
	CameraProject cam,EntityX(entity,1),EntityY(entity,1),EntityZ(entity,1)
	Color 0,255,0
	Line ProjectedX(),ProjectedY(),ProjectedX(),ProjectedY()+EntityPitch(cam)-50
	Text ProjectedX(),ProjectedY()-115,"Y",1
	Color 255,0,0
	Line ProjectedX(),ProjectedY(),ProjectedX()+50,ProjectedY()+EntityYaw(cam)
	Text ProjectedX()+110,ProjectedY(),"X",0,1
	
	Color 0,0,255
	Line ProjectedZ(),ProjectedY(),ProjectedZ(),ProjectedY()
	Text ProjectedX(),ProjectedY(),"Z",0,1	
	
End Function

did'nt work at as planed tho.