Adds and retrives users' threaded posts. All the text that is to be displayed on the main page is saved in the main database file. Multiple forums can be run from one script, by using a separate directory for each set of datafiles. If users' browser supports 'frames', the script will create the main window and a bottom window to display full text of a thread, refered to as 'full' screen and 'split' screen. User can switch between full/split if frames-capable browser.