A week or so ago I released a FeedBurner StandardStats plugin for WordPress over at my BloggerDesign.com blog. It’s purpose was to make it easy to add FeedBurners new (and free) stats program into a WordPress blog.
An interesting side effect was that it also inserts FeedFlare into your posts as well. This makes it extremely easy to install and configure both items without ever having to mess with the template.
If your interested, check out the FB StandardStats plugin and give it a go.