I brought this up with our developers - they say they open and close the firewall all the time as they need some of those ports to work on the server. Your port scan was done during one of those periods. It was our second week of trading and adjustments are being done all the time. Thank for the heads up though.
Windows Sever 2008 - how are you coming to this conclusion?
Also, we don't have any wallet functionality until 11/12/13, so not need to worry.
BitBot