Can't get SI drumkit to work. Help pls

Have you tried a 'simple instrument' track (drag from browser) ... or do you specifically want to separate the audio and MIDI tracks?
(Either should work though - can't think where your issue is ATM).

Try this, making sure SI Drums do work in the first place.
 
1. insert SI Drums as "simple instrument track" as suggested by ShellstaX.
2. load up any drum kit sound.
3. click on step-sequencer and program a simple pattern
 
If it does have sound, then we can be sure it's not an issue and can inspect other issues (the midi track that you pull in may have notes that is outside of the SI Drums range for example).

Thanks for your help but I still cant get it to work.
When I insert SI Drums as a simple instrument track I do get sound from the drums when clicking on the drums or picking a beat. But when I then insert my MIDI track in the simple instrument track and plays it there is no sound. And when I open up the SI drums again I get no sound from it when I´m clicking on the drums or on the step sequencer. So just by inserting my MIDI track the sound disappears. If I deletes my MIDI track from the simple instrument track the sound is still gone. I have to delete the simple instrument track and the SI drum and insert both all over again to get the sound back.
And as I said it all works fine with every other soft synths, my MIDI track plays well with MT-PowerDrumkit for example.
Thanks for your time.

You my friend are a genius! Now its working fine.
Thank you very much!

I´ve created it in Guitar Pro (5) and just exported it as a MIDI file.