T&N

Ali

If you wish to allow a user group to attach files (upload) when posting, you'll have to do the following:
Admin CP -> Users and Groups -> Manage User Groups. Now click on the Edit Group link located at the right hand side of this screen and find the following option under the main heading Global Settings: POST: Max upload file size (in K. Your going to want to set this option to a reasonable numerical value, such as - 20,000 KB, it really depends on how big of file size's you would like this user group to be able to upload to the board.

You must all do this to enable file uploading on your board:
Admin CP -> Forum Control -> Permission Masks.
Now click on the Edit link for the user group you wish to be allowed to upload files too the board. Now check off the Upload permission box for every forum you wish this user group to be allowed to upload files in, once you've completed all the forum's uploading permission settings click on the link located at the bottom of the page entitled Update Forum Permissions.