Hi,
This requirement is not very hard. It only requires some setting up as the original twisties script expected images to be switched. But nothing a little find and replace can't fix.
Can you email me directly at: contact [at] wvanweelden [dot] eu? I have whipped up a sample script and project. I'd like to send it to you to see if it works. If it does, I'll publish it.
Kind regards,
Willam