[eluser]bhogsett[/eluser]
I am no expert and have been using Codeigniter only for a couple of weeks.
I suggest you look in the application/views directory and within it in the templates directory. If there is a common header file it is likely there.
If there is no common header file, then look in application/views and whatever subdirectories have been created for your project. In one of those there should be a file with a name indicating it is a header file.
Once you find the right file (it will have the <head></head> contents, just drop the Google Analytics in.
Oh, I have not done this on my project yet, so good luck.
This is not something that requires mucking around with Codeigniter helpers, etc.
Hope this helps.
Bill