There seems some installation problem in GA codes in my websites .i am having blog in subdomain , where as codes are not tracking any data in blog subdomain \
Check again have u properly inserted that code or not? I think there might be a mismatch in tracking code.
After placing that code into your <head> section you have to wait 3 to 4 days so that google can analysis your website & can get get some ststics to display.