VPN Client Printer Sharing

I am building a new “Main” network with a few servers, several workstations, and several printers. All servers are running Windows 2003 Enterprise, all workstations are Windows XP Pro. Everything is working “Great”. The network is connected to the internet with an ISA 2004 server. I have several remote sites that connect to the internet and need to connect to the main network via VPN. The remote sites have to have access to the main network’s resources, and the main network (at times) needs access to the remote site’s resources.

Scenario #1. Remote computer connects into the main network and has access to main network’s resources. While at the same time, users on the main network have to be able to print to the remote computer’s printer(s).

Scenario #2. Remote user has a home network setup. Remote user connects to the internet via second machine running ICS with ICF. Remote user needs to connect to main network, and have the users of the main network connect to the remote user’s printers.

Scenario #3. Remote user has a home network setup. Remote user connects to the internet via ICS with ICF. All users of the remote user’s network need to connect to main network, and have the users of the main network connect to the remote user’s printers on the remote user’s network.

Scenario #4. Remote network connects to main network and the resources of both networks have to be available to all users of both networks.

All other scenarios do not involve a printer, had do not have a problem. It is only the printing to the remote sites there seems to be a problem.

Currently I am stuck on Scenario #2 (and have not worked on Scenario #1). I can connect to the network. Do everything I need to do on the network. I can have the users of the main network access my files that I have shared, but the main network users can not connect to my printers.