Latest rooted updated http://www.filefactory.com/file/b24168h/n/update.zip
I suggest to use Better Terminal Emulator Pro in order to easy use.
After appling update run this in terminal
$ suandr
$ ash
and you'll get ash shell with root permission
From there on you can do anything.

p.s. Official notice: I doesn't recommend anyone not familiar with linux or android development to apply this update. And can't take responsability for any problem coused by this update.