Fairly new here...so Hi!

I have a D-Link DSL 300T Ethernet Modem, and Im trying to use my Netgear WGR614 V3 wireless router to connect wirelessly to my Power Book G4.
System Preferences is set to automatic, and it is recognising the Netgear router, but I am unable to connect to the internet/receive e mails.

The modem works fine with ethernet cable

The Netgear has all the relevent lights on so i presume its working

Anyone have any pointers or experienced similar problems?