Who ever heard of such a thing? A lot of driver sites are going pay only. They mirror the OEM's drivers and then charge a fee to access them. [link|http://www.windrivers.com|WinDrivers did this] and now [link|http;//wwwmodemsite.com|Modemsite] does this.
Try to find that V.92 Lucent Winmodem upgrade, and you may have to pay premium services if you do not know the location of your OEM to download them for free. At least I think that OEMs still have Driver upgrades for free?
Oh course, as far as I know [link|http;//www.driverguide.com|Driverguide] is still free?