Yes, new versions of the wizards are posted in this forum. I will always open a new topic with each new version, and I usually remove the old version. At the same time I send a copy to Brian and he puts it into the next Mach install kit he builds. We do not have a formal process to update Tormach.
To use a version put here simply copy the zip file to you mach folder and unzip the files into the Addons folder. You should wind up with everything the zip file in a folder called Newfangled under Addons.
There are 2 problems in 2.78 that affect Tormach users, a tool table description error and a path problem on the edit processes. I promised to fix these and get a Tormach version posted, but I have not done it yet. 'real soon now'