From the Support Team: Embedding HTML in the Footer
This post is part of a weekly series by the Magento Enterprise Edition subscription support team covering tips, tricks and hints to some of the most common, and uncommon, issues as submitted by support customers.
To do so, locate the Miscellaneous HTML box under System>Configuration>General>Design>Footer. Paste the code directly in the box and save the data. Make sure to refresh Magento’s cache in full under System>Cache Management.
Once completed, the embedded code will be available on your store.