<<< Windows is not exactly forthcoming with details on how to set up Centrino on the network. I tell the network setup to connect, but nothing although the properties page shows a connection established and x Bytes received, but none sent.>>>
Presumably, in the Wireless Adapter's software (or Windows if you are using that), the Site Monitor has found your Router as an "Available Network" to connect to? Are you saying that highlighting this and selecting "Connect" isn't actually doing anything and the little icon isn't getting its "halo" to show it is connected? If so, do the router's wireless settings include an option to connect to (a) 802.11b only, (b) 802.11g only or (c) both 802.11b and 802.11g? If so, is this properly set for the protocol used by the laptop?
<<< should it be ad hoc? >>>
No, this is only for connections directly between Wireless Network Adapters when connecting two computers without a Wireless Access Point.
<<< at present IP's are manually assigned 192.168.1.1xx >>>
Any particular reason why you are using fixed IP addresses instead of getting them by DHCP from the router? I only ask because using dynamic IP addressing will also help to see if the WiFi adapter and the router are communicating ;-)