Error listing directory for Tru64 Unix 5.1b systems

Hi,

I'm getting the "Error listing directory" message when attempting to use SCP to copy files from a Tru64 Unix 5.1b server to a Windows 2003 server. I believe the problem is that WinSCP doesn't allow a lack of a space between the user ID and the group. My directory listing appears as:
-rw-r--r-- 1 mytnauserusers 2346444800 Dec 9 10:03 rgrrun.tar
-rw-r--r-- 1 mytnauserusers 23031009280 Dec 9 10:01 orabck.tar

I'm the SCP transfer protocol using WinSCP 4.29 Commander GUI.

Thanks!

Can you switch to SFTP?