Well, Im using the regular url download, not the socket connection, so a regular http policy file served from the same ip is fine. If the machine has Apache or a java container server, just place a regular flash policy file in the top level. Then I can try to target it.
I'm still looking for a willing provider of the sc2 server that has enabled the socket policy server. Then I can try a socket stream instead of a url stream.
So, sc1 needs a http policy, and sc2 needs socket policy file enabled or http policy like sc1.
Here is the old style policy file which I use to play nsv files progressively.
http://www.thebitstream.com/crossdomain.xml