Hi, i am developing a website based on pligg, i need to write a few very specific modules for it, but i am having trouble finding the correct way to add my stuff.
i need to know where are modules processed, and what posible locations are available for module_add_action_tpl and module_add_action
i am trying to read the code, but i thought that someone here can maybe point me in the right direction.

Cheers
Esteban