Apple Releases Mac OS X 10.2.3 Update -- Apple wrapped up 2002 with the release of Mac OS X 10.2.3, a hefty update that rolls a number of improvements and bug fixes in to Jaguar. Some changes include compatibility fixes between the Mac and certain digital cameras or external CD burners, as well as enhancements to applications such as iPhoto, iChat, Mail, Disk Utility, and Disk Copy. Mac OS X 10.2.3 also offers better iDisk performance over slow or busy network connections, updates Rendezvous networking, and makes the changes necessary for the improvements in Connectix's Virtual PC 6. The update is available as a mammoth 51 MB download via Software Update; stand-alone installers have also been posted for updating from Mac OS X 10.2.2 or from versions 10.2 or 10.2.1 (59 MB). Prompted by discussion on TidBITS Talk and some personal experience, we recommend running Disk First Aid on your hard disk before installing the update, particularly if you've updated all the way from Mac OS X 10.0. [JLC]
Extract Directly from Time Machine
Normally you use Time Machine to restore lost data in a file like this: within the Time Machine interface, you go back to the time the file was not yet messed up, and you restore it to replace the file you have now.
You can also elect to keep both, but the restored file takes the name and place of the current one. So, if you have made changes since the backup took place that you would like to keep, they are lost, or you have to mess around a bit to merge changes, rename files, and trash the unwanted one.
As an alternative, you can browse the Time Machine backup volume directly in the Finder like any normal disk, navigate through the chronological backup hierarchy, and find the file which contains the lost content.
Once you've found it, you can open it and the current version of the file side-by-side, and copy information from Time Machine's version of the file into the current one, without losing any content you put in it since the backup was made.