The Cosmic Ray e-Lab web page.
The QuarkNet/Walta/CROP Cosmic Ray Detectors User's Manual
The WALTA group at the University of Washington has extensive documentation on the DAQ card.
We've written some python scripts that can be used on cosmic ray data files. The scripts are described here briefly, and the distribution files are linked.
Contains class definitions for lines of crd data and groups of lines forming events. This is pure python source code. Distribution available for linux and windows.