221975 fix avatar upload

i added a function to our forum-board to upload avatar to forum-board, so every main board should have its own icon/avatar, but i really don't get it to work. so i need somebody to help me fix it page now shows current avatar, which has to be modified to have a link for deleting or change it, and extra upload input field, but adding it to the database won't work, as the actual upload not work, so help me please.