Multisite and Google Analytics with Subdirectories

Hi,
I have the plugin enabled for my multisite configuration (7 mapped domains (x.com, y.com, z.com) to one domain (123.com) but can't figure out how to get a GA report on a per site basis. I do not want a report that combines the 7 sites under the 123.com domain. I need to see each domain separately. Is there a tutorial out there that covers this? Can someone provide instructions? Do I need to have 7 separate GA accounts? I have to get this resolved asap and any help is appreciated.
Thanks!