www.linmodems.org ?? Maybe they have a better one. I assume you are installing the drivers correctly(I know when you assume, you make an 'ass' out of 'u' and 'me') but anyway. Hope that helps.
Mankind have a great aversion to intellectual labor; but even supposing knowledge to be easily attainable, more people would be content to be ignorant than would take even a little trouble to acquire it.
- Samuel Johnson