I'm a newbie on this, and I'd like some informations.

I've tried to install and uninstall some apps using the package manager. However, when I uninstall a package, free space goes down. I'd like to know what happens and most importantly, how to regain this storage back. I suppose a backup/log/whatever is created, but I have no idea where.

SL-5600 / OZ 3.3.6-pre1