[Scanu]

Hi ChiNa-Man first of all you should setup a test forum and then enable Debug mode
Open config.php file and add this line of code

PHP Code:

$config['Misc']['debug'] = true; 


Then in admincp you're able to make the product clicking Add/Import Product
Where you can choose title, id, version, description etc..
When you make your product you can add plugins (that contains php code) templates, phrases and settings related to that product, so once you download the xml file it will contain all of these sources. To edit templates you should know some basic php, and you want to edit templates (find some code and replace with another code) or add code to some templates?