That's your internal IP address. IP addresses that start with 192 are reserved for "local" addresses. That is for such things as home networks that connects to the internet through a single line. Your external IP address, the one that whatsmyip.com shows, may not refer to your computer but to your local network.
You may need to configure your router, if you have one, to use the program. I've never used PCanywhere, so I'm not sure how it works. Consult your documentation about NAT (network address translation) and port forwarding.
You may want to start a new thread in the networking forum if you need more help. All the network nuts hang out over there!
Edited by Amazing Andrew, 30 November 2007 - 03:58 PM.