I make phpBB version 3.1.3 for I-MSCP 1.2.9 Software management !
It's the last version.
Here-s the link: gratare.tk/IMSCP-1.2.9/phpBB-3.1.3_en.tar.gz
1. Upload to pannel.
2. Give permissions to resellers.
3. go to a customer, install from Customer Panel.
4. Enjoy !
If you found this useful please give me like. It make's me upload more softwares.