Why does my movieclip get resized?

[macbusker]

Good evening, my Flash demo looks horrible!
The movie clip that plays back each .swf in turn gets resized by the clip. I'm perplexed which command to keep it viewable. I use MX and I'm not a Actionscript guru (I finally got loadMovie to kinda work between layers, but not so good) but I do understand OOP and some geometric concepts, so give it to me straight. Obviously I'm kinda beyond a simple search and grab, though.
I'm grateful for any assistance.

[macbusker]

Actually I don't think this is doable in MX. I'm gonna try something else until I can upgrade.