How to load an extern swf with loadMovie and set swf to new width height

Hi,
We sometimes get swfs at my job that doesn’t match our standard banner width and height. We only have the swfs and not always able to get hold of the *fla.
So we want to load the swf into our different standard banner size and show it.

How do I load the swf into a new *fla that has my standard stage width:995 and stage height: 150? Without distorting the swf to much. Swf could be loading into a MC or loading directly onto stage.
I tried the loadMovie and loaded the swf into a empty MC. But I can’t set the MCs width and height.