For Win95/98/NT users, grab KoalaTerm from Midasoft in zip form. This is a terminal (telnet style) program that allows you to SSH into your shell1.sourceforge.net account. Remember use SSH1 terminal type only when connecting.
There is a port of unix cvs, ssh and scp to Win9x/NT (console only) here.
Grab my batch script to make using the unix port of scp with sourceforge easier.