I bought the wireless WRT160n and i get a wireless signal

Try the following steps :

1. Connectthe cable from your modem into the Internet port of the Linksys router.

2. Reset the router with the reset button for 30 seconds when the router is ON.

3. Turn the router and the modem OFF.

4. Turn the Modem On first, wait for 10 seconds and than the router.

5. Your Internet should work from the computers connectedto the router.

6. If not open the setup page of the router by typing 192.168.1.1 in and browser, the default password is admin.

7. In the setup page, below setup tab, the 3rd subtab is MAC Address Clone, Click on that and click Enable and click Clone the MAC Address.

8. repeat Steps 3 and 4.

Hope tht helps Nikki !

For more info on linksys devices, you can try these links :

http://linksysfirmwares.googlepages.com/configurations
http://linksysfirmwares.googlepages.com/wirelesssecurity