Kerberos with FileZilla

[Diego Pignedoli]

Hi,
I have just installed Network Identity Manager through the Kerberos for 
Windows package, as I am using and friends uses FileZilla, which has a GSS 
support. The fact is that, even if Network Identity Manager is correctly 
installed, if I try to log with FileZilla on the server running ftp service 
and kerberos service, I still get a message "Authentication failed, probably 
a kerberos 5 ticket is not available. Consider running leash32 before".
But leash32 is running just when i start the OS (windows 2003 server).
So, what's I am missing?!

Thanks for the help.
Diego