Help with my character.

This is a character I’m working on for a one level demo. He’s fully textured and has a couple of animations but only one is linked with controls. I need some help on the control setup and some help on the level. The only problem I’m having with the level is that it has hills that the character is supposed to walk over but instead just walks right through them. How do I make him stay on the contour of the land?

Here’s the link to the character:

Here’s the link to a test level:

If you what to renew a sertain question, please, do not doubble post. Just repost in your last one.

Sorry for the double post. This is just an updated file with a fully textured model and animations.