astupidname - 7:12 am on Nov 4, 2010 (gmt 0)

I recommend swfobject2 [code.google.com], especially the "dynamic" method (consult the documentation there) is the simplest and avoids any "click to activate" mechanisms in finnicky browsers, though you can also display alternative content using markup similar to the "static" method without even using swfobject2, just fyi. (If you're currently embedding via adobe's default javascript garbage, toss it for swfobject2)

Incidentally, a typical piece of alternative content should usually use:

<a href="http://get.adobe.com/flashplayer/"><img src="http://www.adobe.com/images/shared/download_buttons/get_adobe_flash_player.png" alt="get flash player"></a>

within at least one of your flash object alternative content holders on the page (you may want to cache the image on your server)