Yup, I do not know the Apple airport capabilities but yes the issue is probably to enable VPN (probably IPSEC) pass through on the airport.

The problem is on his end. He can get a connection to the internet, and he can access his company's web site thats not a problem. It's when he tries to access the part of the site where the company's VPN is set up to prevent access to information to those who are not authorized. He needs to access that part of his site. He needs the VPN access information. Somehow he believes and his company had told him before that he needed to be hard wired to gain access. I say thats dumb. This is 2006. People access sensitive sites all the time. They just need the correct VPN information to make it happen. The whole purpose of all of this is for him to get on our wireless network and do his work without disrupting our network.