[NTG-context] ConTeXt update deletes user files?

Hello, after updating to the latest ConTeXt release (via i-Installer on my Mac) all my custom files are gone! I put them in .../texmf.local/tex/ context/user/ and now there is emptiness :-( The installer shouldn't touch those files, right? Is there a way to recover them? I'm a newbie to ConTeXt so it took me ages to collect all the info necessary to assemble a little module that provides theorem-like environments ... and I need this so bad! Oliver