Ok how do I create a drumtrack with this?

Ok I think I got the idea

cool title

I do the lyrics

there are several ways, you can set patterns and alternate through them, or you can program them in the time line below

Yeah I found out that using the time below pretty much is what I was looking for.

There are many available banks of percussion sounds online (Oink) that sound much better than the ones Reason comes with. I couldn't make anything worthwhile with them until I used other sounds.

if you can get the abbey road keys refill, you will be happy

Yeah if you take the sounds as they are most of them don't sound very good, but I just played around with velocity, level, tone and so on to make it sound a little more realistic...

if you use the nn-xt you can have one drum have several samples that span velocity, so it sounds more authentic. so soft hits sounds like soft hits and not a quiet loud hit. also you can give two samples to the same note and velocity and have them alternate to make rolls more believeable.

http://multipart-mixed.com/drums/nnxt.html