1. The theme will be different in 1.8. See
here
2. You can. See
here
i talknig about auto add button in editor when create bbcode in core not like your tutorial,this not work when upgrade mybb in another version so must be in core
And this is in support why?
I suggested this change but back then it was killed off. Since they were not maybe still are not sure what editor was going to be used. Though now i think its going to be SCEditor judging from some dev responses in the other thread.
http://community.mybb.com/thread-119842.html < was my thread
This change would be very nice. I used to use phpBB but switched to MyBB and saw this feature missing.