Hi Str1ker,
I've been watching your progress with great interest because I was thrilled with what Ingvarr's Water20.fxh file did for the appearance of FSX. I must add however that I am also concerned about the Acceleration/SP2 compatability issue as mentioned by NickN. As I understand it, your program will make modifications to Ingvarr's original Water20.fxh file (If I am wrong about this point, please disregard). It seems that alot of people, myself included, are reporting that this file will not work with SP2. I'm sure that you are aware of this thread http://forums.avsim.net/dcboard.php?az=show_mesg&forum=121&topic_id=419193&mesg_id=419193&page=6 but if not, take a look from about response 46 down.
I even tried using the Water20.fxh file with a fresh installation of FSX plus SP2, and had the same problems mentioned in that thread. I'm not so sure that it is simply an issue with older video cards and drivers because I am using a relatively new Radeon X1950 Pro with 7.10 drivers under XP 32bit.
Anyway, good luck with your program, and I will be thrilled if it does turn out to work with SP2. I've really missed Ingvarr's water shader effects since installing Acceleration.
Dave
Sorry if somebody allready awnsered this. In a bit of a hurry and haven't read all the posts that followed.
I can say however, that the water tweak won't work with DX10.