Here it is
just copy allblack.tsk into windows directory, then settings, today, then choose Allblack.
Then you have the taskbar black
Here is my solution to change the french weatherlist into the german weatherlist:
Copy the manila (i made a backup from the o2 Theme) into the windows directory (disable Touchflo first)
when copied activate touchflo again, then you can choose your weathercities from the german list.