How do i install campaigns from Aoe Heaven?

I have this campaign/scenario called The Relics of Athalen. I've never done this so i am clueless. I need instructions on which file goes where. Here are the things in the campaign folder.

AICampaign

Data

Sound

How to install.txt

langauge_x1.dll

Map of the world.jpg

The most pressing Question(microsoft word file)

ok.heavengames.com/features/blacksmith-features/the-relics-of-athalen/

Edit: btw i am trying to install campaigns to AoE2 HD