Missing EXS Samples - again...

I know this issue has been widely reported and searches on both this forum and Google turn up a mass of results, but for that reason I'm hoping someone can help me with the best easy solution.

I'm running Logic Pro 9.1.3 on OS X 10.6.7 and have discovered 4 missing samples affecting exs24 instruments.

The affected presets are:
Klick Bass
Noise Bass
Noise Cut
Sub Bass
Noise Comp
Spectrum Stack 01
Spectrum Stack 07
UniSyncH
UniSyncL

*The missing samples (the cause the prompt) are*:
Klickbass84.wav
NoiseBass96.wav
UniSyncL.wav
UniSyncH.wav

These are just the first sample in each preset group.

I have tried reinstalling all 3 of the Jam Packs as I can't find the files on my (internal) HD where everything was installed in the default locations. I checked the paths in the exs editor and it shows me that the files are not found where they are expected. (Nor anywhere else on my system).

I've tried using Pacifist to explore the Jam Pack discs but as there is no pkg file I can't see where I need to look to copy these files from.

Any help please?