I finally found a way to get my sites containing flash, xhtml 1.0 validated! I have tried several different quirks and tricks to make the flash validated, with no real success - the Flash Satay example from an article posted at A list apart
and the default Adobe embed to mention a few.
The solution was SWFObject from deconcept.com
! To say it directly:
SWFObject is a small Javascript file used for embedding Adobe Flash content. The script can detect the Flash plug-in in all major web browsers (on Mac and PC) and is designed to make embedding Flash movies as easy as possible.
To mention a tip: you can use the noscript tag with the js script to include an image incase the browser cant read flash OR javascript.
Robert Nyman has written another way
to do this, have not tested it yet, but check it out.