For the forum badges, the Larian Vault server doesn't automatically update the forum server when you enter your email address (use the one you originally pledged for, if you've since changed your kickstarter/paypal email address). There have been at least a couple manual updates of the forum; I don't know if more general updates are planned, or if you would need to email kickstarter@larian.com to get it added.
The digital map and documentary have not been released yet. There are design documents, an art pack and the soundtrack, though, either in the '..\Divinity - Original Sin\CollectorsEdition' folder for the Steam version, or listed with the other extras for the GOG version.
