Alectrus - 2010-10-20

I love Poderosa and just found these special versions. I am upgrading from the last released version 4.1.0. I have some questions:

1.) Can you please give the option to revert back to the old tab bar? The new one takes up a lot more space then the old one.
2.) I can't find a way to enable Middle Clicking the mouse to close a tab. Can this be done in the new version?
3.) I have a lot of saved shortcut files without saved passwords. Is there any way to read the password in clear text? If not, what encryption do you do so I can do the same in my shortcuts?