For update through forum on ur site 1st make a sample forum view only in admim mode. Then paste below code on ur home page. Change forum id, css name, and Change l=? As ur necessity. Currently wapka introduse last update manager for updating wapka site. You can use forum update also to make some special updates on your site.

After paste above code use below forum link code for update. Use it as ur requrement on your sample forum.