Just attempted to use the app. Tried it out with just one photo, having set up defaults to match my needs. Everything works fine until you hit the resize button. The App throws up a white rectangle - no bounding box just obliterates an area of the screen (suspect it's showing a progress dialog or similar). Finder shows the app as unresponsive. Force quit.

Looks workmanlike and had it worked I would have been posting suggestions for improvement/enhancement.

Machine used was an ice generation iMac (Intel based), totally up to date on all Mac OS updates as of today (5th Sept 2008)