I'll keep this post updated for as long as I am looking at it. Please post any bugs or requests in this thread, don't bother developers with them

The patch is currently known to work with r16050. You can get Windows builds which will be generated when there are enough changes to test. If you build from source you will still need copypaste.grf from the original thread.
Windows build last updated: 13th April 2009 (r16050)
The patch has currently not been tested with cargodest (perhaps in future, or try it yourself!).
You can track development progress on my site. You can checkout and build using Mercurial from the same address, this is advised if you want the latest build on Linux.
Important note: The format for saved templates is currently changing constantly, so templates saved with one build may not load in future builds until a stable patch is finished.