PS3 Update to System Software 4.89: Here's a Full Guide for You
PS3 News: multiMAN 4.85 released coming with support for CFW 4.83 to 4.85 - First update to this highly popular backup manager since the release of FW 4.82! - Wololo.net
PS3 Backup Injection for Games with LIC.EDAT on OFW 4.81 / 4.82 | PSXHAX - PSXHACKS
Latest PS3 Firmware 4.84 now hacked thanks to "hybrid firmware" release - Wololo.net