TeeJay has the right idea. What you want to do is take whatever file explorer you prefer and place it into the gapps zip file you are going to install in recovery. For example: open gapps-evo-20110415-talk.zip/system/app/???
Place File Expert/Astro/ES/etc (File Explorer apk) in that folder.
Then it will be there for you.
I would then use it to open the folder that holds Titanium BackUp and let it install your apps and data... not system data
Good Luck.
(Anybody can correct me of if they do something different)