Thanks Phil, you're right. I've found a bunch of .jpg files in the ..\TRS2006\Cache\thumbnails folder which are the pictures the CMP displays in the Asset Details Action Panel. Fortunately they're all listed by their kuid numbers instead of the unreadable folder names in the local folder which makes this a handy way to see a bunch of pictures easily and then find a desired item by kuid number in CMP. You can also add a 240X180 .jpg picture by kuid number for any assets that are missing pictures in CMP.
Bob