You have a delete redirect after you delete the row in the database and the delete file code is below that. Just move the delete row from table code (lines 11-22) below the delete files code (ending at line 61), and I think that will fix it.
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.