SSL FTP via HTTP proxy

Hi !
I am trying to use the SmartFTP client via HTTP proxy, PASV mode.
When I use a standard FTP, or FTP over SSL (explicit) and Clear Data SSL, everything is Ok. The client sends CONNECT HTTP command as supposed to 8).
But if I use SSL with Private Data, data channel's connection fails 8O. As well as if I set FTP over SSL (implicit), even control channel connection fails :x .
I have looked at commands sent by the client. It seems the client DOES NOT send CONNECT command to the HTTP proxy server, but tries to start SSL negotiation with proxy server. Of course, the proxy returns 400 Bad Request response, because request is NOT a proper HTTP command.
Client "forgets" to send CONNECT to get connection with a real server :?.
Any ideas ?

Thanks !

The bug has been fixed in build 1.0.981.11

Thanks for your bugreport.