I don't have a flash player but I have written an An Adobe Air desktop player that plays a shoutcast station (it would be simple to adapt to Flash as Air used Flash behind the scenes). A badge can easily be added to your website to allow people to download it. I've released the code under an open source license if you wanted to customise it. You can get it from:
http://code.google.com/p/shout-on-air/
code.google.com/p/shout-on-air
Here re some examples:
DapperFM
probert.me.uk/files/DapperFM
SlinkyFM
probert.me.uk/files/SlinkyFM
Hope this helps