Hello!
We have just installed a Bluecoat Security/Proxy system for our business.
Some of our end-users need to FTP through the Bluecoat for various reasons.  We have a solution for Windows users, but not our couple Mac OS users.

FileZilla v.2.2.32 works with Windows because it has a FTP proxy compatibility setting named:
- USER RemoteID@RemoteHost FireID
Unfortunately, v2.2.32 is unavailable (except via source code) for Mac OS.  Version 3.x is available for Mac, but the Proxy settings have changed...  I think it will be a matter of arranging the security/communication string correctly, but heck if I know in what order...  Heres whats in FileZilla v3:  
-----------
USER %s
PASS %w
USER %u@%h
PASS %p
ACCT %a
-----------
(%h=host, %u=username, %p=password, %s=proxy user, %w=proxy password, %a=account(lines containing this will be omitted if not using Account logontype))
-----------

Anyone have advice???
If not on the connection string, does anyone know of a FTP client for Mac that handles the non-transparent proxy security type USER RemoteID@RemoteHost FireID???

*Please note that I cannot change any of the Bluecoat settings*
*Please also note that I am a Windows-head and have no access to the Mac in question* :-)

If I can explain something better, please let me know!  And thank you for your time experts!!
- Mike (OB)