It looks like this topic is still a concern to others as it has been to me. I am not a programmer or developer but I was able to incorporate the Spider Search in my shop. I've used it now for about a month and have been very happy with it. It took alot of hacking and my store has been modified quite a bit, but if someone is interested in files, I'd be glad to send them to you.
The site is here:
www.HilltopTreasures.com