I need a bit more details to really know what's going on. Be sure to press "Load Images" and "Start" after the images load. If no images load, it may be that you spelled a tag wrong, or no images with those tags exist.
I have been working with the dev on an update. Not sure when it will be released or if it will get finished since our schedules are so busy. That feature is one of the planned features though, should the update ever get finished.
