When I set up a cloudsafe account, there were a few steps that I didn't find terribly intuitive. In case it helps someone else navigate them:
- Set up an account. Verify your email.
- Now that you've verified your email, you can create a Personal Safe. Do so.
- Add an Access Chain to the safe.
- Add your own contact to the Access Chain, enable "Read and Write" access for your contact. Click "Enable".
- Click over to the "Safe Content" tab, then click "webDAV in the lower-right. Click "Enable".
The next panel that appears will show the information you should enter into OmniPresence.