Can I use Win 2k8 R2 as an IPSEC client?
I think you're missing the Advanced Settings tab. But here's a quick walk through.
1. Choose set up a vpn in the start menu
2. Follow the wizard. Select "Don't Connect Now"
3. Browse to network connections in Control Panel and Right-click your new connection and choose properties
4. Go to the security tab and select IPSEC.
5. Click advanced settings and enter your PSK (Pre-Shared Key)
You may need to adjust your settings a bit from there, but that should get you most of the way.