I think it's missing a vital option...
Why do you think this feature is vital? I'm just curios... month ago, when i thought about that i got the feeling, that that feature would be more confusing than it would be helpfull... but i can always change my mind about that.
I would like to have a subforum also, but users should still be able to post in the main forum. So the sub forum would appear above the normal, sticky and announcements posts... can this mod do that, or easily be adjusted so it will?
No, this mod can not do that. But yes, i shouldn't be too hard to change the design a litte. Hm... the subcategories should be displayed in the messagelist of the top forum. Another option is to use the name of the top forum as link to the messagelist and a little graphic behind or in front of this to go down to the subcat. Thats the easiest but also the less optimal solution.
Enhancing the messagelist would be more than a little bit of work, but thats cleaner. Perhaps - but i don't think it would be of any good - we can change the design from the alternating subcategorie->subforum to a single top categorie, which contains forums and a recursive definition of forums containing forums themselfs. That would be more of the standard by other boards, people are used to it... but that would be 'killing' of features instead of adding them.
And very, very unfortunatly i have to say, that i don't have time to do this. DoubleDoom and Ralendil are doing fine in updating this mod to new releases of phpBB, but i think that the source is complicated and needs time to get used to it and to get the big picture (the 'why does this do that?' instead of the 'what does this do?'). So be nice to DoubleDoom and Ralendil so they keep updating but don't hope, DoubleDoom or Ralendil will rework the basic design. Sorry, i wish i could do some work on my own... if anyone knows of anythink to make a day last more than 24 hours let me know.