If the camcorder is MiniDV then you might want to do some extensive search on the camera or in the manuel because, I've been using MiniDV camcorders for over two years now and I'm pretty sure for importing video you need firewire, the usb is usually for hard drive camcorders or if there's a memory stick slot on the camcorder
P.S. no matter where you go, unless it just happens to be a "camcorder store" the people may not always know 100% of what they're talking about... so double check the firewire thing...