copio y pego de la pagina de dev-team:
Did you think we’d sleep? really?
Recommended method for updating is Sparkle (the internal updater inside PwnageTool) or using the Finder to decompress the files, don’t use command line tools to decompress as incorrect use will not preserve permissions, just double click the download above in the Finder.
NOTE: DO NOT USE “THE UNARCHIVER” to decompress our .tbz files, it’ll corrupt them, just use the existing Apple utility called “Archive Utility” that ships with OS X, usually a double click will do, but in case you have something else weird and non-standard installed the correct decompression tool can be located at /System/Library/CoreServices/Archive Utility.app
Installer 4 Beta is included, it is added in any mode by default. The main installer package management interface within PwnageTool isn’t enabled yet, and will report that installer.app isn’t available, but the actual Installer.app package is added as a default option in both modes.
The latest Cydia is also enabled by default
NOTE: THE UPDATE OPTION FOR CUSTOM RAMDISKS IS NOT YET SUPPORTED FOR USE WITH ITUNES, SO FOR THIS RELEASE OF PWNAGETOOL USE THE RESTORE OPTION.
Please ensure you ONLY download and use the tbz file - as we warned yesterday the re-compressed unauthorized .zip files cause problems with certain parts of the release.
If you choose to download the file PwnageTool_2.0.2.tbz from anywhere else apart from these mirrors then check the SHA1 sum, AGAIN - ONLY DOWNLOAD THE TBZ!
The SHA1 sum of our file is c68fc1981679497d9d5b76135aaf06775b19d612 you can obtain this by running the following command in a terminal window :-
$ openssl sha1 PwnageTool_2.0.2.tbz
PLEASE ONLY MIRROR THE .TBZ FILE, NOT ZIPs, MAKE SURE YOU HAVE THE CORRECT MIME TYPE, AND WE’LL ADD TO THE MIRROR LIST.