Where do you download the update for St Maarten?

Ok, so now I know it wasnt me! I thought I did something wrong and lost them... No big deal! I did in fact read the forums about runway lights mine used to be so DARK where I couldnt land at Princess Julianna, now adding the BGL file to the scnery folder and renaming it I HAVE GREAT BRIGHT RUNNWAY L...

I used to see dolphins jumping in the water on landing at Julianna,. After installing the update they seem to disappear! Is this normal?