12may
Hi,
Thanks for your interested in DT Register. Below are my answer for your inquiry:
in DT REGISTER can each user post an event or only the site administrator can?
It will depend on the Permissions you setup in backend of DT Register, if an user belongs to a User Group which is granted permission to create / edit /... event, then that user can create event
Further, are they integrate with Community Builder?
And yes, DT Register is also integrated with Community Builder.
Let us know if you have any further question.
Regards