I appreciate everyone's info, thank you.
As it turns out, about a week after my first-time-ever dealing with or trying forum software, I was assigned to be in charge of another site that also has forums and they are badly messed up. I don't know how to fix their problems yet, but I do know enough to realize they have problems, so I'll be diving in and learning as quickly as I can now. I guess it was meant to be, for me to start learning this now! funny how the world works, isn't it?
I'm getting ready right now to try that reinstall for custom instead of simple, so wish me luck!
Well . . . . . I've been doing some more reading and exploring and I think it looks like the Concrete5 might be a good thought, instead of only re-installing the phpBB. Although I can build my own websites by hand, and enjoy it, I don't feel that urge about this particular site - I'll be "just a volunteer" and want things to be as easy and fast as possible for me to manage it in my copious free time (HA!). It looks like concrete5 would have the site-building-made-easy stuff that I want, plus forums which I also want (either now or eventually), as compared to the phpBB which looks to be just forums.
What do you think?