Yes. Exact same settings as before.
I just went back through the HOWTO step by step on my desktop machine to see if I could set it up there. Doesn't work there either. I wonder if you're right about Cingular blocking ports. When I try to connect it does the "Verifying username..." thing and then says "Registering your computer on the network.". It eventually times out with a TCP/IP error 718.
Oh well. Was good while it lasted.