Hello Stan,

Congratulations on owning one of the best LGDs in the world.  You are on a journey of discovery and learning.

For the immediate situation - I suggest that you take the dog to the flock on a leash and walk him among them (the goats) the sheep will probably scatter.  Keep the meetings controlled and correct any unwanted behavior. After a few times he should know that they are not to be harmed. 

I took three Caucasian Ovcharkas that had never seen a sheep or goat and successfully integrated them into a flock of sheep and goats. My dogs ranged in age from 8 to 13 at the time. 

Just be persistent and maintain the rules.

I uploaded a document in the files section the you may find useful.