Wrong size when Swf displayed in HTML ?!

I have a flash/ swf file of the size 360 width and 490 height pixels.

Then I also have a HTML document loading this swf file. In Dreamweaver the HTML frame is set to 500*600 pixels thus displaying the swf file it has the wrong size. Picture and text are stretched.

How can I, via the flash/ swf file determine, that only the area 360*490 of the swf is to be displayed. This should be no matter the size of frame predefined in Dreamweaver/ HTML.

Changing the frame in HTML would obviously solve my problem. But I finally have to uploading my swf file in Lotus Notes. When trying this it gave me the wrong size. This corresponds the issue mentioned above. That is why I can not just change the HTML frame size. I need this to be managed via swf/ flash.

It this feasible ?
Hope for some help since I have spent three months on a project and have to upload next week … a very bad situation !!!

Best regards