Hello at all!
I'm sorry for the very (!!!) late response.
Internet Explorer will not be supported. Unfortunately.
Microsoft often says that IE, in the current version, is one of the best and most modern browsers. But IE implements only very outdated standards.
My plugin uses CSS3, which is quite new but implemented in mostly all modern browsers since at least two or three years.
As you can guess: IE doesn't.
Nevertheless, you can use Hover Image. I don't know anybody using IE.
With kind regards
Julian (cs&m GmbH)