OK, I've downloaded the module, run the SQL in Admin....now what?

I can't find any information anywhere (and I've tried!) to tell me how to install the module files. Do I just ftp everything to the includes/modules folder? There's no instructions!

Sorry, just finding the whole process extremely frustrating as there doesn't seem to be any information readily available.

It could just be me being thick, in which case I apologise...help! :)