Hopefully this page might clear some things up.
"I lost/forgot my password!"
You have two options. One requires a valid email address (the one that you put in your profile, hopefully, because otherwise... well... we'll get to that later).
About option 2, I might not be able to get back to right away, so... be patient. Also, there's no guarantee I'll help you, unless you prove to me that you are the account owner.
"How can I import my existing library content?"
The old version had a couple importers that I haven't rewritten to work with the new system. Stay tuned!