Who has experience with ndiswrapper?

[struggle4progress]

I'm trying to get a working installion of ubuntu only an old xps t450 -- primarily as a sandbox exercise; the thing ran Windows 98 until I stopped using it several years ago

The exercise, of course, is almost entirely pointless without internet access

Unfortunately, the old box sports an ancient US Robotics winmodem (Rev. A00); I may replace it eventually, but first I want to see whether I can get it working. The linmodem folks' scanModem can identify the modem, though perhaps not correctly -- the scanModem info does really match what's pasted on the physical card -- and scanModem doesn't think it's supported. I haven't found new drivers for it -- the USR drivers site isn't very helpful -- but the old .inf files are available to me from the original install cd

So the first option is an attempt at ndiswrapper. If you have any experience with it, I'd love to hear about that