I don’t get it.

Hi.
I’m a newbie, I’ve been playing with this great tool for a couple of days now. I’m going to make a photoblog, that’s why I want to use the next and previous template tags. But the instructions for using them are unfortunaly for me and others not idiot proof.
Here’s the tag:
http://wiki.wordpress.org/link_pages
And Yes, it’s within the loop. I’ve put it next to the comments.
http://unrealworks.com