circusgirl_update xbmc

99% [Connecting to apt.thebigboss.org]
Ign http://apt.thebigboss.org stable Release
Hit http://apt.thebigboss.org stable/main Packages/DiffIndex
Fetched 782B in 2min 32s (5B/s)
W: GPG error: http://nitosoft.com  Release: The following signatures were invali
d: KEYEXPIRED 1355702829 KEYEXPIRED 1355702829 KEYEXPIRED 1355702829
W: Failed to fetch http://apt.thebigboss.org/repofiles/cydia/dists/stable/Release.gpg  POSIX: Operation timed out
E: Some index files failed to download, they have been ignored, or old ones used                               instead.
E: dpkg was interrupted, you must manually run 'dpkg --configure -a' to correct the problem.
Apple-TV:~ root#