@TexasKaren68: I'd recommend not doing the Digital Underwater Photography course until you've really nailed down your buoyancy control. For most people, this is approx. 50 dives. You'll find UW photography will be less stressful and much more fun. You won't be crashing into the coral either.
If you want UW photos during your Kaua'i trip, pay someone else to take them for you.
While this doesn't directly address the question asked by the OP, I heartily agree with this tidbit of advice.
kari