Clean PHP Routine to Send Images Embedded in Email

We have routines on our site that are sending normal HTML rich emails. I want to change those to cid - embedded images so they don't get stuck in spam filters. I simply need a couple of very clean routines to aid in this function. We will build a simple test case for your functions on my server. FYI -- I found this script... [login to view URL] But I want to use PHPmailer as the base... Should be a simple task.