Does Vernier still support the original CBL?

We do indeed continue to support the original CBL.

A great way to get started with the original CBL is by following the instructions in the CBL Made Easy guidebook. In a few simple steps, you will load the programs necessary to collect data with our sensors. It is available for free download from the following web page:
http://www.vernier.com/legacy/cbl/easy.html

Calculator software for use with the original CBL are available by request. Please contact Vernier.