I am in the middle of addign some ps stone and i want to make air of atlantis. I have it set and all i see is the field it does not give air underwater.

cb 1.4.7 ps v9.5.5 snapshot

http://pastebin.com/J8y0wkGs - ps config

I can confirm this

Just tested this and it works fine. Maybe it needed to be compiled against 1.4.7. You can pick up the lastest build from Jenkins.