I used the 'Crop' function all the time to define a certain area of an image and then "Save for Web and Devices."
This allowed me to save a .jpg of a defined pixel count size and place it into an email for someone to see - at a small enough resolution to be emailed.
Use the Artboard tool to make a new artboard at the size and location you want and the make sure you choose that artboard on saving.
You are the MAN ! Thanks for helping out... that worked!!