Here is the .zip driver for the Microtech Cameramate. It is not self-extracting. After downloading, you must unzip the folder. Once unzipped, connect your cameramate. When XP asks for the driver, point it to the location of the unzipped folder containing the Microtech driver. This should take care of it.
The following files are found inside the driver download file.
|DPCMUSB.inf||1.9 KB||8 Nov 2001|
|EUSBMSD.sys||51.1 KB||8 Nov 2001|
|DISK1||4 bytes||8 Nov 2001|