aaronn - 3:14 am on Jul 4, 2013 (gmt 0)
Correct me if I'm wrong, but I believe you are looking to aggregate the site visits across all your domains into one analytics account?
If so, you will need to make slight changes to the tracking code used in all your sites. There's a guide by Google here that is pretty comprehensive: [support.google.com...] All you need is to add a line of code to the tracking code of each site.
Hope that helps. Let me know if you have any issues implementing this!