Hi David,
According to the documentation which I have, the latest version of the driver that supports your board is nidaq 4.6.1; however, this is not supported at all under windows NT 4.0, but under NT 3.5, and under DOS or Win 3.x, unfortunately. Those boards are very very old. You can try out under NT 4.0, but I don't promise good results at all, because of incompatibility issues.
Hope this helps.
Aguila