Install Google Analytics Code + Ecommerce

The new [login to view URL] tracking code from Google was installed on three of our websites. Since then the new tracking code has been buggy with Ecommerce Transactions so we want to revert back to the old code. The Google Analytics code is inserted on a single page ([login to view URL]) which hits all pages of our site. In addition to the regular google analytics code, we need to have accurate tracking of our ecommerce transactions re-worked to go with the old code if necessary. After changes are made, we will want to allow 24 hours to test the results to complete the project.