I am not sure of the exact process but you will need to go to your admin panel for phpbb. Look for something that says user permissions or permissions. Once there you can edit and assign permissions to users. I would also suggestchecking Google. There should be some in depth guide listed there.
<@TimeX-NFo> Hey, we used to have to carry our packets to the servers.
<@TimeX-NFo> And it was upstream, both ways.
<@TimeX-NFo|away> You're asking the old dude for help?????