I like my page better.
(I'm just teasing, my page was really primarily CentOS specific, and the important thing is that you got it working)
I prefer the pcf2vpnc script, but that's just personal preference. (I'm aware of the link in the Debian article, and it probably *is* easier to use for most people.)
Please do take note, however, that it's VERY important to use vpnc-disconnect when done, if your Cisco VPN provides a DNS server. The vpnc program will temporarily backup and replace your /etc/resolv.conf. If you just let the session time out, and don't use vpnc-disconnect, it won't put the usual /etc/resolv.conf back in place.