I am having small problem with puting code from www.automaticbacklinks.com on s9y. I wanted to place that code into fotter. As I have read content.tpl is main file but can`t really find it.
Into the footer of what?
Using the content.tpl is not advised as it is smarty code.
What you need is to copy and paste this code into your php document where you want your links to display. This is commonly the config.inc.php file of your template.
The easiest way (as a hint on how to do in general) could be: