Well Ive done it now.
Finally made it to version 2.0 (I realize most would say this should be 1.0, but I feel 1.0 was completely capable for my previous needs.)
I cannot think of anything else that should be integrated into WP from PHPBB. Nope Nothing.
So I present to you WPHPBB Version 2.0.
New Manage Panel allows you to edit the wphpbb_integrate table and the PHPBB posts (minimally for your own safety).
completely custom PHPBB posts (thanks to skippy's subscribe 2 ideas).
now allows single quotes(') in div tags
loads of new options (some I cant remember right now).
If anyone else has any suggestions on what its missing, I will be happy to entertain the idea of maybe going to 3.0 hehe.
(it still needs all the bugs worked out.)
PS about changing the two functions. The easiest solution I could come up with would be for the end user to edit the files and put checks to see if function does not exist around the original functions in both WP and PHPBB. And have WPHPBB rewrite the functions to work with both systems. This would seem to be almost as much editing of the original files as the other choice of just changing the few occurences in WP to something else. I dont know if this would make it easier for the end user or more complicated.
Matt (developer) prefers putting the if !function_exists around make_clickable in WP, since both, WP and PHPBB's, seem to do roughly the same thing (transform html into clickable urls).
(there would still be problems.)
This would work, but we would still have to fix it for get_userdata.
Opinions on this would be appreciated.