Alright, version 0.9.2 of Fettuccine is now moving up to extras-devel. This version features limited support for authentication; Fettuccine will now pop up a dialog box with fields for a username and a password for servers that require them. I have done some minimal testing with it, and have been able to log in to a server that was using basic access authentication.

I'm not sure whether Fettuccine can handle self-signed certificates yet; everything else should hopefully be working now, though. I'll take a look at certificate issues next...