Hi Ged,
Herein I am sharing the link to documentation from Opentaps which is essentially
built atop OFBiz but mostly uses the catalog manager from OFBiz with very few,
if any, changes -
http://www.opentaps.org/docs/index.php/Opentaps_Users_Manual#Using_Catalog_Manager_and_Setting_Up_Your_Products
You may find this documentation more structured and easy to get started with. Do
note that this documentation should be good enough to get started very quickly
and to familiarise oneself with the terminologies but may not be an exact guide
for all screens and functions that you may experience in the latest OFBiz
catalog manager.
Hope this helps.