It might be a bug, might not!!

I'm not sure why, but I have 2 albums contained 171 images. The number of photos calculation said that I have 332 images which I don't. Does it not just count the photos from the albums only, or does it counts the resize photos as well?

been there, asked that.

http://www.zenphoto.org/support/topic.php?id=92

It doesn't count. That would be way too inefficient. Ignore it for now.