As I promised a few weeks ago, I just upgraded my CodeClimber skin to version 2 of Lightbox.
To see the new features have a look at my post about picture of vacations and click on the images: the first one is a normal image (but you will notice the new image loading animation), while the second and the third are setup as gallery, so, clicking on the first (the Kilimanjaro one) you have to possibility to move to the other (Kalymnos one) always staying on the image popup.
I'll write more on how to setup this on any Subtext blog in a few days
UPDATE: I just wrote an step by step guide on how add lightbox v2 to a subtext blog