We have now switched off google Analytics for the store as the internal oscommerce stats do a far better job of giving us the information that we need to make decisions about the store.
Google Analytics requires java to be enabled and if a visitor switches off java, then Google Analytics will not count that visitor in it stats. We are finding that more and more people are browsing the internet these days with java switched off.
The last reason for this decision is that google makes the information public and we do not want our competitors to be able to use this information to gain an advantage over us.
Please feel free to contact us with any questions you may have.