Secure FTP

Can we do Secure FTP using basic services procided in webMethods B2B Server?

To do SecureFTP from webMethods, do we require any other piece of software? If yes, is it from webMethods or third-party?
If it is from thrid-party, how does it work with webMethods?

Anybody used CONNECT:Enterprise software for secure FTP? It is a prodcut from Sterling Commerce.