Flash Stage resize and positioning

I have a flash app located at

http://www.triniscene.com/tsv7/galleries/?page=flash

now I want the flash dimensions to set to any reasonable size dimension in the HTML…while the movie adapts to the Stage dimensions. The problem I am having seems to be a browser issue. While in IE the movie takes the upper left hand side…it doesn’t in FF…

I have the stage set to Stage.scaleMode = ‘noScale’; and then set the _x and _y to 0…

what is the issue with FF here and is there any work around?