How to create a game where you're constantly scrolling in one direction?

Ideally, I'm looking to create a game where the actor automatically scrolls horizontally across the screen and the idea is to go up and down to dodge enemies/pick up coins etc.

I'm completely new to this, so I was just wondering if anyone knows of a tutorial around that could help me with this - or even just some advice on here. I'd be most grateful.

Thanks.

From the Stencylpedia;

http://www.stencyl.com/help/view/backgrounds-and-foregrounds/

Gracias Amigo! 

Right, I've looked over the page numerous times but I'm still no closer to getting it working.

That High-Noon Balloon game is the sort of scrolling motion that I'm aiming for.

Is there anywhere that gives a walkthrough of how to get this effect from scratch?

I have tried numerous tactics to get it working and have spent numerous hours over the last few days, but I think I have to concede and ask for help... 

Any help given will be greatly appreciated as I'm close to pulling my hair out at the moment! 

Search on StencylForge for Tuo's demo download it and study the code.

"Demo- Infinite Platformer"

http://community.stencyl.com/index.php/topic,16160.0.html