Since this question was raised twice on the forum now, here a post to inform everyone that things are moving on. CS4 support is on its way. The last release of Scriptographer is a long while back, and a bit buggy in many ways. In the meantime many of these bugs were fixed and many features added. We also changed the API in parts and therefore broke backward compatibility with existing scripts. The scripts will be easy enough to update, and the syntax got easier in many places.
It all ended up becoming a far longer transition than initially planed. The challenge now is to wrap this unfinished transition up a bit for a CS4 release soon, then finish the pending changes, and not mess everything up.
A preview version will be offered along with the current version, for backward compatibility until the transition to the new API is over.
Stay tuned and help out where you can.