[Pharo-project] MCDirectoryRepository defaultDirectoryName ignored?

Hi guys. I have changed the value of MCDirectoryRepository defaultDirectoryName by doing MCDirectoryRepository defaultDirectoryName: '/Users/mariano/Pharo/localRepo/'. or by the settings browser...but anyway, it seems "ignored". For example, if I now create a new repository in the monticello browser, and I download a package, the package cache used is the previous/original one (there the .image is). I want to set an specific package-cache and that all projects/packages loaded in the future take that package cache. any ideas? thanks -- Mariano http://marianopeck.wordpress.com