The lifetime membership includes all current and future tutorials (no need to pay again), and is an amazing bargain at the price. The ocean tutorial has been re-posted, see the end of this thread:
http://simplylightwave.com/forum/sho...?t=5729&page=2
Finally, as I recall, the ocean tut was only external (ie waves), I believe the "fishy tut" did cover some underwater lighting.
-LeRoy3rd