No one has answered the first poster.
Basically we don't want to change where the OS is, we just want to install apps to the 2gb internal drive or the external card.
I'm sure there is a FAQ somewhere if someone could just point us.

Its 1 of 2 things:

1. Either changing the symbolic link of something like USR (but are programs spread over more then set of root folders) ?
2. Or its the setup of the application manager.

If anyone finds it please post

rgds