Make sure you have Triggernometry installed, and updated to the latest version. This step is optional, but recommended as the triggers are built with Triggernometry use in mind, and most complex triggers will not work without it.
Drop the resources folder into your ACT root directory (or wherever you want it). This is optional, but image auras and audio file callouts will not work without them. If you don’t know where this is, it’s probably in its default location (C:\Program Files (x86)\Advanced Combat Tracker).
Import all files inside the xml directory into Triggernometry, or import them remotely.
Edit and tweak as needed. To update it live, just type "save settings". This was made so a group lead could update everyone's settings at the same time, if needed. It can be disabled if you wish.