I want to add some scripting (specifically adsense) to my forum. How do I do this with phpbb. Maybe i'm missing something obvious but i just dont see it in the admin panel.
You need to find the file (where you want to add the code) on the server with ftp and add the code from there.
It would be somewhere here: yourdomain.com>phpBB>templates>subsilver>overall_header.tpl if you want it in your header or >overall_footer.tpl if you want it in your footer.