Where do I get a Drivers CD for my Cruz?

There is no drivers CD available or required.

USB Mass Storage Drivers:

When tethering your PC, you may be asked for drivers. USB mass storage drivers are not required. You may be prompted to install drivers for an ADB device. This is not required for tethering or USB Mass storage functionalty. If you are attempting to tether your PC for the purpose of transferring files to and from your internal or external SD card, follow these instructions.

ADB Drivers:

It is not necessary to install the driver for the Android Debugging Bridge (ADB) for general use of the Cruz Reader or Cruz Tablet. The ADB bridge is used by advanced users and Android application developers to access the device using the Android Software Developer Kit (SDK) and other tools. For those users that require the ADB driver to be installed, follow the steps here.