WinModems + Linux == EVIL
I had only intermittent luck of using winmodems in linux. While i cannot add much to what was already suggested, i will also point you out to www.google.com
where you can search if all else fails. I'm sorry to dissapoint you but Linux WinModem support is a bit sketchy, so don't expect too much of it. Consider investing a bit of money into broadband as more than 50% of US internet users are already running on broadband, plus you'll be able to suft faster, not to mention you'll finally be able to get updates to those outdated/unpatched packages.