Hello. My name is Joel, and I can help you solve your problem. Thank you for your question. My goal is to provide excellent customer service.
I assume that you have already removed the previous version of Wondershare Slideshow Builder, which you purchased on eBay through Binary Distribution Ltd. and that it was a downloaded version. Now you want to go back to it if possible. Is this correct?
When you downloaded it did you select Save or Run? If you selected Save, you can run the executable download again from you Download folder on your computer. If you selected Run, you should be able to contact Binary Distribution Ltd. or your eBay seller and tell them that your download got deleted and ask for a replacement.