Everything is now up to date with the latest stable release of wordpress (2.5.1), gallery2 (2.2.5), wpg2 (2.3.0.6), the latest version of the K2 theme and the newest embedded gallery theme with lightbox support.
I am writing this all mainly for future reference, but there are a couple of interesting new features. Aside from some pretty massive back-end changes to wordpress, the best new feature of the upgraded blog is the lightbox support. I might add this feature to LightandGlass.net after a little more testing. To see the lightbox feature, click on the picture of the inappropriately named wiener dog, “Rebel”
There is also now slightly better support for other media formats, which will probably matter to Hud more than me, but you never know. When Album Covers Attack
is lightbox an addition to gallery, or is it a stand-alone plugin for WP?
I added links to my post for the various things running on vindauga . . . but to answer the question, lightbox is a standalone plugin for gallery that has been incorporated into the most recent release, but it only works with themes which support it, for more info go to http://codex.gallery2.org/Gallery2:Modules:Lightbox where you can see how to hack your own theme to add lightbox support.