Hi Alex,
You might want to investigate this free control that helps you configure and
emit the Flash object code:
"AI-Flash'In ASP.net component allows you to include a Flash-movie on your
Webform with a few mouse clicks. You can parameter all the Flash player
native properties. The swf selection to play is activated through a standard
dialog box. Sizing and positioning are done with the mouse and moving is
played at design-time. With Flash-inside, it is now possible to include a
movie with a simple drag and drop.
With AI-Flash'In, you can use a click event. A click event in the flash
movie can be handled in a webform by adding a few code in the movie. You can
add a sensitive area (using a clip or a button). This actionscript code
cause the page to be posted back to the server, throwing the serverside
click event on the AI-Flash'In control. "
http://www.asp.net/ControlGallery/ControlDetail.aspx?Control=1530&tabindex=0