Installing shoutcast ... Via the update command /usr/local/centovacast/sbin/update

Saving to: â/tmp/sc_serv.tar.gzâ                                                2013-03-03 23:32:42 (902 KB/s) - â/tmp/sc_serv.tar.gzâ                         
gzip: stdin: not in gzip format
tar: Child returned status 1
tar: Error is not recoverable: exiting now
Sorry, an error occurred while unpacking ShoutCast DNAS.
Installer exited with error, aborting

There is no such package as "shoutcast", you probably meant "shoutcast1" when you initially installed it.  Delete /usr/local/centovacast/update.d/??_cc-shoutcast.update to stop the updater from trying to update it.

Success thank you