Radmin Security?

i am looking at installing this on a server that has access to internet. I can’t find much in the way of white papers on it. It has a paragraph that talks about remote access engaging encryption (128bit des md5) on the web site. I plan to enact windows nt authentication for internal remote control but what about the stream from the remote client to the nt box? Is there anyone out there using this product for remote access and can attest to its security? Also, is anyone using this through a checkpoint firewall? Thanks