VPhot and the VPhot User Guide are member only benefits. Please do not share access to the software or the user guide with non-members.
To access VPhot go here - http://www.aavso.org/vphot
Click here to download the VPhot Users Guide - Version 3.2 (2.7 MB).
You can also register for the CHOICE course "How to use VPhot" when it is offered.