Flash movies & different screen resolutions

Hello,
I’ve created two different flash movies for two different screen resolutions.
When i have my screen res set to 800x600 flash in “test movie” recognises this and picks the right movie. The same for when I change my res to 1024x768 it picks the right movie for that res.
However when I put them in Dreamweaver and upload them if i have my res at 800x600 the 800x600 movie will play right but it will shrink the other one.
If I have my screen res at 1024x768 it will play that right but make the other one huge.
What can I do to fix this problem.
Thanks
Rob