Thanks for the great feedback, humeston, really. I know that the setup process needs work, and I am not proud of it in its current state. It needs to be streamlined, more automatic, and give good specific feedback about what to do if something goes wrong. It works just fine on 95% of the server configurations out there, but it chokes on some. I recognize that deficiency, and I'm sorry you had to go through a bad installation.
I try to make up for it by personally attending to the support forums to help people through anything that goes wrong, and by fostering a supportive, friendly community where you can vent like this and be heard positively. These guys are right, this really is one of the most helpful communities for any OS project I've seen, so take advantage of that. It's part of Zenphoto. Comes with it at no additional charge.
I'm sorry you came across a bad configuration - I really will work to simplify the installation process so things like this don't happen as often in the future, and when they do, I'll still try to keep the forums a friendly and supportive place to come for help.
Sorry again, best of luck finding a better gallery for your needs. And if you do come back, I'd love to hear more specifics about what didn't work for you, where problems occurred, what made you angry (seriously, that'd be great information), and how you think the process should ideally go. Thanks.