what kind of router are you using btw? Can you check the IP range that your Router DHCP server [if it's working] is assigning to the clients? If you know the range, just try assigning your wireless connection on the PDA a static IP Address. The DHCP on the router might be disabled ...

Do not dwell in the past, do not dream of the future, concentrate the mind on the present moment. (Gautama Buddha)