There are 2 versions of Lightbox in the WordPress plugins directory, and only one of them works properly with PhotoSmash.  The one you want is Lightbox 2 by Rupert Morris.
There are a number of other Lightbox-like plugins that you can use as well, each with a slightly different flair than Lightbox.  One of my favorites [...]

At long last, I have the first version of PhotoSmash Extend almost ready to go out the door.  While I have enjoyed providing PhotoSmash and the support for it for free, I plan to charge a small fee for PhotoSmash Extend.  99% of users who want PhotoSmash features will find everything they want in the [...]

This release brings new features, Contributor Galleries being the biggest, and bug fixes.
Check out the Change Log for all changes.
Check out the How-to for adding the contributor galleries to your WordPress blog’s Author pages!
Cheers!
Byron

At long last! PhotoSmash 0.3 is being released in conjunction with the launch of this site. At some point, you have to go ahead and unlock the doors and turn on the lights.
If you’ve been using PhotoSmash 0.2.62 (the previous stable version), then there are a lot of new features to explore in [...]