blackbox >
http://www.fileforums.com/showthread.php?t=94425
blackbox v2 >
http://www.fileforums.com/showthread.php?t=95595
Neither one of these scripts are able to use Ultraarc, you must use freearc, to compress game files. IF you read the notes from the topics you would have seen that right away.
The only scripts that use ultraarc, specify that it can be used.