You will need to use CSS or "styles" to control the display of content on your Web page.
One solution is the declare the image as an actual background image for the container:
nothing will go behind it.
Or if you place the image inside the container and want to stack something else on top of it:
of course be sure you also understand wmode as it applies to Flash or you may not be able to correctly control the placement:
Window Mode (wmode) - What's It For?
There are three window modes.
In windowless modes (like opaque), Flash Player doesn't have a hWnd. This means that the browser tells the Flash Player when and where to draw onto the browser's own rendering surface. The Flash movie is no longer being rendered on a higher level if you will. It's right there in the page with the rest of the page elements. The Flash buffer is simply drawn into whatever rectangle the browser says, with any Flash stage space not occupied by objects receiving the movie's background color.
thanks for our help, ill try it out and will let you know if it fixed my problem.