The addon works with S consoles, I have 2x HD-DVD drives and both work fine with Xbox 360 S
The E model should be the exactly same, I could verify this myself but the only E I have is packed away right now with some other spare consoles, plus you've edited the OP saying you don't need an answer anyway so I won't bother.
BTW, the older white media remotes (both small and large versions) work fine on S models too.
You don't need to have the later revision (black) media remote.
Just putting this info here in case someone else stumbles across the thread with a similar question.