Netbook internet connection issues

A fortnight ago, I purchased a Hp mini netbook. I normally use a 3usb mobile broadband internet key modem. Unfortunately this will not work on this notebook as it only has a screen resolution of 1024x576. However there is definately a way around this issue but the 3mobile customer care center seem to be chasing their tails when it comes to fixing the issue, everytime I call i get a different soultion, none of which work. Does anyone have any suggestions of someone in adelaide who is savvy enough to work out this problem for me. I dont care what it costs, i just want internet access! 
