Flash sites / Cache question

Hiya folks.

I’ve been using flash for a long time as a hobby, but only recently began getting further into it. So far I haven’t had many problems with certain things, but theres one that just irks me to no end, and I haven’t made any headroom in terms of finding some solutions.

Is there a way to force a cache clear for a flash site? For both IE and Firefox.

My newest site is at www.zombiegaming.com (p.s. thank you kirupa for the mp3 player tutorial and the external preloader tutorial). I update this site very very frequently, and its becoming a real hassle to tell people to clear their cache 3-4 times a day to see new changes.

Is there anything I can do to work around this?
Thanks folks,
HCJ

edit:
another problem im seeing is that upon intitally loading the page, no buttons work at all, unless you make the window smaller or larger for a second. then the buttons work.