Adding A New Page in my forum--Help!!

[sellbuydomain]

hi, i am try to add a new page in my forum, it is internal page, i did that in admin page, add a new tempate page, and edit the header to add a link as menu, check www.advertisetalk.com i add a menu " Advertise Magazine" but something wring with coding maybe, is there anyone tell me how to make a new pages in my forum , thank you very much

or any can make it for me will be very appriciated. thank you