We’ve updated our direct download charts so that you can pick up any version of iOS you need. Including iOS 5.
All you have to do is visit our download page here to grab the update. We have a direct download of the iOS 5 IPSW.
iOS 5 adds many new features, such as iCloud support, over the air updates and wireless syncing, iMessage, an improved notification system and more.
You can also take a look at our other download pages:
Complete iOS Firmware Download Guide (Direct downloads of iOS firmware)