USB detected in the Info Panel but Cannot access to them...

Hello,
I am know able to have my Camera and my MPIO HD100 detected in the Info Panel... when you go in the USB tab.
I can also see them (at least their S/N, Name, etc...) through the USB (don't remember the name, USB watcher or something like that).

But how can I enter into them to get my files?? I found no way at all to do so :(
From where can I go into them?

I hope someone will be able to help... Lots of people here seems to have an autodetect USB thing, but I don' hav that... Perhaps is it just an option to activate?(is it ?)

Thxs
Ludo