I FINALLY found an accessory program to get image file metadata lists (including shutter count) that works with Exiftool for Mac (OS-X) without any command-line nonsense (a link to PhotoME for Windows is also found there). Do this:
1) download Exiftool for Mac from this site:
ExifTool by Phil Harvey
2) double click on it to install. 3) Scroll down on the same web page, under Related Utilities for Mac OS-X and click on: "
Download three droplets to extract information [exiftool must be installed] (thanks to Rob Lewis)", then 4) double click on the archive to decompress it. Move the "List Exif Metadata" folder into the Applications folder (optional). 5) There are three "droplet" apps, and you can drag a JPEG image file taken with your Pentax digital camera onto the "List Exif Metadata (edit)" droplet and it will give you the shutter count along with a huge list of other data. The other two droplets also gave lots of data, but not the shutter count, for some odd reason.