I deleted and reloaded the slides and MP3 file countless times and each time my slides were terribly misaligned with the sound track. I decided to post the slidecast anyway hoping to find a fix quickly. Then today, I found this post buried deeply in Slideshare's help Center. I am sharing it here in hopes of saving someone else the frustration I experienced without finding this information.
Once I found the missing instructions, success was within my reach and I present below the fruits of my labor...."ta-da!"