have a look at this thread

http://www.backtrack-linux.org/forums/beginners-forum/575-decnet-installer-nmap5-2-a.html

Try the search button and enter wordlists

try opendns it comes with an app that will auto update the ip address when ever it is connected to the internet.

I have the same problem using my AR5007EG wireless card. i was trying for hours to get -5 to work and at no point did it come back with USE PACKET, in the end i tried the below and it worked
...