Your .zip file will contain everything you need to start creating. Be sure to install any fonts in the assets folder where applicable.
Add source files
You can easily find the composition where you drop a file in or alter the text the file navigation.
You will find the customisation options by toggling down the controls layer in the master comp, and double clicking the effect.
Always export from the composition ending in MASTER. Use either with file > export to render queue, or export to Media Encoder.