To install, download the latest version of PTA from the "My Account" section, then overwrite the .exe that's supplied with the updated zip file directly over your current PTA install. Also included is Matt Davies' own preset for those of you who are looking for something to get you started.
PTA is a standalone, portable application. Unzip the contents of the archive surplied as a download with your purchase to a folder of your choice. Run the .exe and follow the on screen instructions.
Before using PTA, please make sure that have all the original Prepar3D 4 shaders installed into the sim. Tweaked or modified shaders can't be used by PTA and will be ignored (See ERROR messages in log). If this happens, just put the original shaders back into the sim and restart PTA.
On launching PTA, it should automatically detect Prepar3D v4 and locate the installation, shaders & cache directory. It will also create backups of various shaders to the \SHADERS_BACKUP subdirectory in the folder you've put PTA in. Config files used by PTA will backup to the \CONFIG_BACKUP subdirectory.
Important - Please do not delete or modify contents of the subdirectories or you will lose the ability to restore backups.
NOTE - PTA v2.50 will work with PTA v2.00-v2.11 installed at the same time on the same PC however they require to be their own SEPARATE directory.