I try to write down what to do.(sorry for my english)
You will need Euroscope and SBStoFSDproxy.zip, download them.
1.extract SBStoFSDproxy.zip to somewhere
2.install euroscope
3.copy all the dll's and manifest files from the euroscope installation directory to the SBStoFSDproxy directory (maybe it works without them but not on my computer)
4.start the SBStoFSDproxy program
5.fill out the address and port fields (127.0.0.1 and 30003 if ANRB or SBS is running on the same computer) and press connect
6.start euroscope
7.click on Connect button on the upper left corner
8.on the popup window select connect direct to vatsim from the list, the server is localhost (or where the SBStoFSDproxy is running) and fill out the other fields with some blabla(callisgn,psw...), it doesn't matter what you write.
9.press connect and enjoy :)
Hope it's clear.