Firstly, answers will be posted to the forum not as direct emails to people as that way people with the same problem can get the answer. This also saves us having to send the same reply to several different people.
With regards to the driver you do not state which model of Conexant modem you are trying to locate the driver for
In any case the following page should help :-
http://www.conexant.com/customer/md_winxpinfo.html