The link to the DB manager should be just below the log in box. So if you logout, you should see the link straight away.

Don't forget to make the modifications that I noted (in the other thread/issue) though. Otherwise you won't be able to log into your new DB! :)

TBH, I have no "real world" experience with Odoo, but it's certainly quite popular and on face value looks like a good thing.

Any further feedback you might have on how we could improve things is always welcome.