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First as to the accessing the router configuration -- lets try by wire -- there is less likelyhood of a problem.

Connect an ethernet cable between the computer and one of the LAN ports (block of 4 side by side and NOT the separate WAN port). Attempt to access the configuration as indicated at http://192.168.0.1. You do not need to hook up the phone line until indicated later if you want to wait.

Instructions are also in this link
ftp://downloads.netgear.com/files/DG834Gv3_ENU_SM_1FEB06.pdf

Once you have access to the router's configuration you need to configure it for your specific ISP the following link from Netgear may help determine your ISP's requirements
http://kbserver.netgear.com/kb_web_files/N100472.asp

Now you need to hook up the phone line to test the configuration

Now if this has been completed successfully you should have wired access to the internet.

Assuring your wireless adapter is turned on (built-ins have a switch to turn them on). See if your wireless has access to the internet. If so good -- consider the following paragraph on security. If not please add a comment to this and explain the issue. Also attempt the ping above and report if the ping works from the laptop,

Wireless security -- your wireless signal reaches outside your home or apartment, you should consider adding WEP or WPA encryption to the wireless network to prevent access by others not desired or intended by you. This is achieved by entering a common passphrase into the router AND the wireless adapter configuration on the computer to use the network. If necessary please request additional instructions for this. Identification of the wireless adapter or computer with built-in adapter may be required to assist with this.

If you require assistance with any of the above please ask by adding a comment to this issue.