You should now have ability to use images in your signature. The File Manager should also be available.

I will need to take a look at the forums permissions and group permissions and update based on feedback here. Permissions and groups are used in the backend to limit access to certain features and way to thwart spammers and hackers from gaining access to parts you do not want them to have access.

For example, I have a group set up for new members who have not had a post approved and another group until you hit another level. These groups have limited access and posts do not appear right away. This is what you were seeing. There give and take issues when limiting access to stop spammers. Do you want to impact experience of newbies to restrict spammers.

In this case, it's negative experience and I'm going to update permissions to reflect change so not to have negative impact on experience.