Sandbox security error 2048

I have done an IRC client in flash, it works fine in local but not on my site. I load the policy file at the root of my site (http://skurcey.sk.ohost.de/crossdomain.xml).
Could someone could explain me what to do to get this done, please. I really don’t understand much at flash help, thanks.
Heres my swf http://skurcey.sk.ohost.de/FlashZone/IRCClient.html i can provide the sources if needed but be i code like a pig :frowning: