Roger,
First make a good backup of your current setup. Then you can
load your downloaded styles into the USER banks of the KMA. If I remember correctly,
you can overwrite the factory styles so make sure you are loading things
where you want them. I had a KMA and used it on gigs often. Mine was the first version of the KMA not the Liverpool version but I suspect they are the same except for the factory sounds and styles.

Check into John Smies resources for the KMA - they are terrific.

Good luck with your new toy.

Deane