Since your adding a wireless router, go to the computer that you will be using it with (anything with wireless) go to my network places, double click the wireless network, connect to the wireless router, then go to internet explorer or firefox (whatever browser you use) type in 192.168.1.1 then click on your wireless tab, and it will probably prompt for a username and password for this look in the book its usually administrator and password but it varies model to model, you went to set your encryption on usually there is a setting for 64bit or 128 bit 128 bit being the strongest encryption set a password and save your settings, if this is too vague pm me and I'll hit you up on an instant messenger or phone your choice I'll do my best to get you up and running securely.