Hi Colin,
I think you need an access point first off and set the ipronto to fixed IP. I dont think it will work in adhoc mode...

I have a netgear AP which worked fine when my ipronto worked... BUT see threads from me further down...

I am using my WAP on its own (not connected to a PC via an ethernet port) with each PC having a wireless network card, I now have a mix of Belkin and Netgear cards on my network.

Does that help any ?