I have uploaded a little program written in delphi for resolving your own ip address at any time.
Please note it does NOT resolve network addresses properly. I haven't worked that one out yet but you could try a program like RazzMon to resolve the network ip shared address/es.
both are placed at
http://briefcase.yahoo.com/judeshares - I have tried to make it public access but if not try the password blahblah
You will need the razzmon update if you wish to make the connections with razzmon for your own network.
Jude