Dev's page not in ENG? Sad... but still check the homepage:
http://www.kings-bounty.com/eng/
But the graphical design from Skyfallen (
http://www.skyfallen.com/) is more about pictures, than language...

not to mention that google can translate any web page... in quite good quality (or bable fish)
Katauri:
http://www.katauri.com/ is really missing ENG button (its there but dead), but again -> google can translate it.
I would advise to check most reviews for this game (to be found in "reviews" thread), but watch out not to read too much in other "spoiler" threads ...

it is for your own good sake, should you decide to buy this excellent game.