Where do I put the php code????|Tweet Like Plusone and Share Plugin|Plugin Support Forum|TECHXT

Ok, I gotta be missing something here. 

I want the buttons to show up after each post and page, so where the heck do I put the php code to have those buttons show up in that location?

Feature request too: Have the plugin automatically insert the code like other plugins do, and have the option of placing it above, below, or above and below each post or page.