Very unfortunately this interesting website is gone. It was
http://www.subsowespac.org/
And what you refer to in your title is called
Hawk's Silent Hunter Utilities for the Pacific Thunder Campaign
Maybe try in the 'Internet Archive'. However I have saved these pages years ago and still have all the tips etc. I can make a copy paste here if you want, but this would not include the interesting grafics that come along with the text...
Cheers,
XS