cant print wirelessly!!!!!! help!!!!!!!

I have recently purchased a mac book pro and i have a HP Deskjet 3070A printer that is an air printer. I have just installed a BT home hub 3. the problem i am having is i cannot print wirelessly.

My mac says the printer is not connected but the printer is connected to the hub and the computer is connected to the hub.

Even my i-pad wont print any more where it did before.

PLEASE HELP!!!!!