I have the exact same issue on 2.0.0.11 firmwares. I have 2 WRV210 (both running 2.0.0.11) and Tunnel E's are configured to be exact same on the 2 devices (Remote and Local Secure groups are opposites of each other and both remote secure gateways...
It did not work for me (using the PPTP to connecto to WRV210). I was hoping the Cisco IPSec would work in Mac OS X 10.6 but did not either. I guess I'll have to try third party software.