I already posted this in reply to another post of yours, but just in case anyone else is reading along here or stumbles across this particular thread in the future...
The basic rules of thumb are:
- If you're using the standard E-junkie Cart and Cart Buttons codes (where our cart appears as an overlay "inside" your page), put our special version of the GA tracking code in your site's pages, but don't add it to your E-junkie-generated thank-you pages;
- If you're using any other button codes (including if you're using our cart buttons in a manner where the cart appears in a separate window/tab), just use GA's standard tracking code in your site's pages AND add it to your E-junkie-generated thank-you pages;
- Whichever version of the GA tracking code you're using, make sure you're using only that version everywhere -- i.e., don't mix'n'match using our version of the GA code on some pages with GA's standard code on other pages, and certainly don't put both on the same page! :^)