I'm no longer able to access the machines on my windows network when connected to the VPN while using Windows 7. Everything worked fine with Vista. Any ideas?
I have no experience with W7, but name resolution problems over VPN is often because auto-discovery mechanisms won't work with a routed VPN.
If your VPN is routed instead of bridged, you may have to set a different option in DHCP (or a VPN-integrated host configuration protocol) telling it the address of the name service for W7 than in Vista.