You were right... sorry. I have just installed phpbb and in my sleep deprived haze (I have twin boys) I had somehow installed phpbb's install directory inside photopost.
I've corrected that, and am in the midst of installing. I am a novice at this type of thing, and I don't want to screw anything up.
In step 1, I imagine that I should leave all of the photopost database info as is in the install window.
I don't know what I should enter for User Database Host or User Database Name. I would imagine User and Password are the same ones that I am using for phpbb forum?
Thanks for any help that you can offer.