Hi Matadem,

re:
> Question is there a way to scale image with reference points?

Yes, the "Align" function inside the Image command is for doing that, see links here:
http://moi3d.com/forum/index.php?webtag=MOI&msg=10975.2

It does image registration by picking 2 reference points on the image and then 2 reference points in the model and matching them up.

- Michael