According to the documentation, you can connect from a variety of platforms, but I couldn't find anything as far as Linux client software.
However, you might want to look into using VNC as an alternative. It has (free) client and server software for numerous platforms and was designed to do exactly what you are talking about... managing a Windoze server remotely from a Linux box.
http://www.uk.research.att.com/vnc/index.html