well
firsty
you have to write out a structure for your message board. (im currently also coding a BB without looking at a piece of BB code before it is quite challenging but im going at it good) The basic structure of my BB for threads and posts are
Thread TABLE holds
threadstarter
title
blah blah
postids (important)
the postids hold all the IDs of the posts in the thread for example the postids of THread 1 are
1,2,3,4,5,6,7
so the thread displays posts 1 2 3 4 5 6 7! thats the basic idea for a structure might not be the best way but thats the way im doing it 🙂 but be careful maybe there is a better way
now for posting something you make a html page with the forms and stuff. then a php file that gets the variables from the forms and then sticks them into the posts table but remember you also must stick the ID NUMBER into the POSTIDS in thread table !
POSTS TABLE HOLDS
postid
poster info
blahblah
im done explaining for now hehe i have alot of coding to do 🙂
hoped that somewut helped!