well for one, your IP address is not up right now.  I sent a ping from cmd, no response.
Second, you probably shouldn't bother using D view cam software.
Last, each camera must have a unique port.  You router will only allow port 801 to go to 1 ip address.  Set camera 1 as HTTP port 801, #2 as 802, and #3 as 803.  Then you would just have to go to IP:801, IP:802, etc. 
Also, 8080 is most likely a bad port as in my case, it is used by the router for remote management.