Do you want
to embed this in html? If I understand you correctly, you want a flash menu that has a transparent background and when you mouse over slides out over the html portion of the page. Transparency may be possible, I have had better luck just using images and lining them up carefully (one in the .swf aligned with what is in the html). You will never get the menu to expand out over the edge of the .swf. That is a limitation in working with Flash in an html table based page. The flash can only be where the flash movie is.
Does this clarify anything?