D-link Step 7 in Set up Missing

i HAVE A DSL-G604T ADSL Modem Router when I ran through the Set up Guide that was on the Cd provided I found that Step 7 (enable Wireless) in the setup on screen is missing, but it is displayed in the book. The set up jumps from Step 6 to step 8 when I click on next. I read that wireless is disconnected by default. My home computers that are plugged directly into the router can all access the internet. My laptop (runs Vista Premium) detects that a wireless network is available but connects to my Dlink network and says it has limited connectivity and I cant access the internet. If I plug my laptop directly into the router I get internet access.


any help
appreciated

victorash81