Understanding ps3 file trees - where do pkgs install to?

Hi,

I've got a simple setup of 120gb slim with cfw 3.55 (I think kneaw) and multiman installed. I've got my backups working through multiman and have installed several pkg files which contained games and these are accessible through the xmb.

Is possible to move those "pkg" games (the shortcuts) from the xmb menu to the multiman backup manager for convenience - so it's all in the one place?

A second reason is to manage internal vs external hdd space so I can control where those games are stored...

I'm guessing the pkg file just creates directories on the internal drive similar to the way multiman creates directories for each game backed up?

Could you help me out with the location?

Can I just move those files to multiman's backup folder?

Thanks for looking :)