Is this an old powerCMS v1 site? Or is this just a site you created using HTMLEditor? The easiest solution is probably to delete the entire HTMLEditor folder and then replace the editors on the pages where they are used.
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.