I'll try that. Do you know if the back to mac tab will light up green when one side can be reached by the mobile me /.mac server or is it when both sides are setup properly? Right now it has a yellow status and giving a nat error.
The light will turn green when the client computer can reach the .Mac servers successfully.
The ports used for BackToMyMac will vary considerably, so manually forwarding those ports you mentioned above will probably nor work.
You NEED to have a UPNP router on each client end in order to make this work. If the user has a DSL modem with a built in router, try and see if there is a firmware upgrade available for it that adds UPNP. Also, make sure you're not double NATing that DSL modem if you also have a router behind it.. so many times i see users using a router in DHCP mode with a DSL modem instead of having the router in PPPOE mode dial the DSL connection..
Let me know if you need more info,
P.S. It's good to be back