i think i can help you a bit with the frame work of what you want to do.
You want to have a page that has a reply box much like the one here at kirupa. this box would have a variable name that auto increments (so if the last one was text1 this one would be text2, but it does it by itself) so that its always different. he types what he wants tehn hits submit, a PHP script checks if he has already subbited something to that varialbe, and if he hasnt, updates teh TXT file.
now you have to get down to some coding…i might be able to help a bit with that, but i dont know to much. but thats what you want to have in there…i think.
