Adium 1.0.3 fixes Spotlight importing of chat transcripts. Unfortunately, this can do nothing for previously created transcripts, since Spotlight doesn’t see them as having changed and so doesn’t reimport them. The solution, however, is simple.
Method A: Yummy GUI goodness
Download this application and run it. It’s a wrapper for method B—all you have to do is double-click on it. It’ll exit immediately; Spotlight will reimport your logs in the background.
Method B: The manual way
Run the following command from Terminal to force Spotlight to reimport all logs:
mdimport -r “/Applications/Adium.app/Contents/Library/Spotlight/AdiumSpotlightImporter.mdimporter”
If Adium is installed somewhere besides /Applications, change the path accordingly.
Edited by Peter Hosey to add the GUI version.