It looks like it doesn't recognize that you are updating from mySQL to mySQLi and it is keeping the mySQL version of the code on the page. If you give me FTP access I can try to fix it for you.
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.