Hi Jackie,
I was able to 'fix' the initial problem using your code and css on my machine by simply deleting the swf file, and removing any swf object code from the page. I then inserted the swf again via the Insert > Media > SWF menu, and selecting the t2m3_header3.swf.
Dreamweaver then placed two files in to a Script folder:
expressInstall.swf
swfobject_modified.js
The SWF then displayed correctly, as did the rest of the formatting.