HELP NEEDED for mobile !!!

Good Morning to Everyone.I've just downloaded and installed a pre-built Maverick (Ubuntu 10.10) with Trinityon an old TOSHIBA Satellite U-200. I would be verry happy to drop KDE4.x, which I don'tlike at all, and keep my old good (very very good) KDE 3.5. I was having troubles with wireless, but they are solved and now wireless is OK.Unfortunately, now I'm not managing to setup a mobile connection through a huaweiusb key. Is there some guide about how to configure a mobile connection under Trinity ?ThanksDaniele Manghi