First of all im not a geek, second if ur trying to install the printer (not the software that you get with ur printer) through some kind of program, say like ms word, than ur doind it wrong. Even though the printer is installed, it will say offline next to the status. Goto control panel and select hardware and devices and than printer(i think), than ull see the option install printer, than it should ask u if u want to install a wireless (wifi) or cable printer, in ur case its a wireless the bottom option should be chosen, than it will ask u to install from a cd or chose from windows update, chose windows update and let it update (might take some time), than it should give u the list of all the products( printers), select urs and click next and the rest is easy. Another way is to install using the cd, if u dont have the cd, just use the cable with the printer, and if the vista pc is a desktop, than my friend i have no clue if what to do, u can try using the method i told u, and make sure that if ur printer is wifi enabled than it is connected with the home network(router).