I solved my problems. I have it working.
Creates topic in a specific Forum on your phpbb database when someone views the post.
Pulls the comments from the board and places them under the post formated like the blog.
Concerns:
I have to change two WordPress functions: get_userdata and make_clickable. (dont think there is a way around this).
Having database problems with the plugin wp-useronline from Gamerz, yet ordinary database functions work.
Using a modified template of single.php to work because I can post the includes at the top of the page before the html and it doesnt affect other pages of the blog.
I am using Fluffy’s integration as maganon, so it needs phpbb fetch all and the netcletic’s insertion mod.
Future:
Want to make it a separate plugin which can be turned on and off.
Want to make it so that it can pull the comments from the wp database and the phpbb in case this is being enabled on an established wp blog.
Want to make it simpler.
I am writing up “clearer” directions.
You will need to install the phpbb mods phpbb fetch all and function_insert_ post. Basically follow the directions at Fluffy’s ( https://trikuare.cx/mt/archives/000425.php ) up to “Prepare your webblog for phpbb”. Then replace single.php with the one I have (or at the code to an existing one). Ill post it later tonight after I provide notation.