I saw a lot of ****ers who were asking for this drivers. When i was looking for it i went to the forum and i found some messages like "This modem doesn't works with W2K, i cannot find the driver" o some like that. I went to the motorola ****in' page and i found it quickly and easy.
I hope that drivers helps you.
PD In the ****in' forum why most people reply the original messages and write **** (I can't understand stuff like that)