You can access the latest TintedGlass theme via git. There are currently four branches you can choose from.
0.24
experimental
master
mythtv-master

The 0.24 branch is of course for MythTV version 0.24.
The experimental branch based of the master branch contains modifications that may or may not make it into a released version.
The master branch is for trunk. ( currently 0.25 ).
The mythtv-master branch is used by the MythTV developers for the built in theme chooser. It may be behind the master branch at times.

You can clone the repo:
git clone git://github.com/hpeters/TintedGlass.git

Or you can follow the link above MythTV-Theme-Git-Access and download snapshots of the branches.
I will also continue to create tar bz2 files as well.

Harley