In the HTTP Proxy I am seeing alot of
2008:11:25-10:14:34 (none) httpproxy[7455]: [0xaee0ccc0] send_winbindd_request (auth_adir.c:1002) write: Connection refused
This is with the box attempting to connect to Server 2008 in compatibility mode
Other then these errors showing up in the log so far all seems to be working.