TLS Support for RDP

TLS Support for RDP

Bought this app because it says it can do TLS/SSL.

I have my Terminal Server (2003) set up with a TLS connection, we have about 50 "roaming users" that can all connect to it via TLS (RDP5.2) via their notebooks (they only carry their notebooks becuase they do this.. I'm hoping to get this to replace/enhance the notebook setups).

When I connect up with the iPhone (the thought being that I can push this app out to ALL of our iPhone users) I get ErrorID52:X224 protocol failure on the terminal server logfile, and the RDP fails.
I can't see any options for security on the RDP setup...

I am not sure that this does exactly support RDP/TLS.. (maybe under VmwareView setup - but not Microsofts' RDP TLS implementation.
(ref: http://support.microsoft.com/kb/895433)

I must be missing something...?!?!
anyone done this or is this a mis-wording of the app?