Hey Slippy,
I set the tool bar to be hidden along with hiding the icons so you didn't see them when AM launched a rom.
It's just like a windows 7 auto-hidden tool bar.
In the home directory is a retropi setup script.
I don't have my RPI in front of me so it may be in a sub folder.
Choose BINARY install otherwise you'll be compiling emulators forever & a day.

To re-run AM just trigger the tool bar by going to the bottom of the screen & hit the "start" button & choose the "run command" and simply type "attract" and hit enter.
To copy roms just have your RPI hooked up to your network & browse the network neighborhood from windows.
the retropie script should create folders for you as it installs emulators.
If not make your own.
The emulators will end up in ./user/local/opt I think.
I know /opt is the folder the executables end up in but the linux directory structure can be confusing.
Honestly, LXDE is very similiar to windows 7 or XP in terms of funtionality and it's almost as intuitive.
I hope I helped.
Not having the rpi in front of me = going by memory & I havn't been in the guts of mine for a month.