InstantForum allows your members to attach files to post and private messages.
Attachments are uploaded directly to the InstantForum_Attachments database table. You can limit the amount of space available for attachments when editing permission sets.
The manage attachments tools available within Admin CP » Attachments » Manage Attachments allow you to view basic attachment statistics, view & download attachments or sort & delete attachments as shown below...
Customize The Allowed Attachments
You can control exactly which type of files your community members can upload alongside posts from the Attachment Types page within the InstantForum Admin CP.