I got the same email. I don't understand why. The following is stated on the Themes page:
" Premium Themes Require: Object Desktop with recent versions of IconPackager, Theme Manager, and WindowBlinds installed. "
It is well known that IconPackager only half works on Windows 7, I am afraid to even try on Windows 8.1 because when I last used it on 7 I had to do a complete reinstall of my OS to repair the default Windows icons.
It is equally well known that Theme Manager doesn't work.
Why keep selling themes intended to be used with non functional software?