Ah, I see your issue now, the user name and password need to added to the config file (unfortunatly I don't have the configuration module working now). I don't know what apps you have installed, but the two easiest ways I have for doing it is using emelfm2 on the tablet, or winScp over secure ftp. You should be able to use any text editor that can see the hidden directory "/home/user/.mlb" or you can do the following:

mv /home/user/.mlb/config /home/user/MyDocs/.documents/config
[use your text editor here to add your user name and password]
mv /home/user/MyDocs/.documents/config /home/user/.mlb/config

And I've updated the package, I found a bug where closing the dialog wasn't stoping the play back, so I fixed that.

I'll update the config setup asap to make this easier.