If your trying to connect wirelessly with your laptop make sure that you have the following information of the router;
1. Wireless network name or SSID
2. Wireless security settings; WEP 64/128 bit ot WPA
If your not familiar with the settings then you may need to access the setup page of your wireless router. Hardwire the laptop to the router or if you have a main computer that is already connected with an ethernet cable, open Internet Explorer or Mozilla Firefox or any web browser you are currently using. On the address bar type http://192.168.1.1
(router's default IP), then you will receive a pop up asking for a username and a password, there is no username and for the password type "admin" then click the Wireless tab on the router and check the basic wireless settings, if your not comportable with the settings then change the following; SSID - use a name that is easy to remember, Channel - 1,6, 11 is ideal, then for the Wireless Security choose WPA Personal and enter a 8 digit WPA Passphrase(pasword), remember to click save settings every tab that yuo go to or else the settings will na take effect. Then check if the laptop will detect the signal of the router and when it prompts you for a password or network key, just enter the 8 digit code that you have configured earlier.
If you have further questions regarding the setup of the router just post a reply and I'll to give you a response if my sched will allow me.
Hope this will atleast provide you with some idea in setting the router properly for your laptop.