Quote: "More details on what you are using would maybe allow someone to answer your question better..."
Something PHP based I can install on my webhotel. I'm using one.com if that makes any difference.
Quote: "Seems to be possible with the built-in features of phpBB 3+"
I'be been looking at phpBB as a likely candidate. This feature does not allow for images but it is better than nothing. Hadn't seen it before. However, I can't get it to work using their test feature. Will play around with it some more. Thanks for the link
Quote: "Build your own forum"
I did that once back when I had more time. But it's a lot of work and I never did the whole backend part. Using an existing forum software saves a ton of work.