If you run this thread
http://www.the-ebook.org/forum/viewtopic.php?t=12053 through Google Translate, beneath the 600 screen shots you will see a Rapidshare link for the Russification file. I think there may be a readme file in the zip which gives instructions in english. Once you understand the instructions, run the exe file and the process takes just a few minutes.
The link I posted is for the amutin version as that is the one I used and it worked very well for me. Been using my clock for almost 2 weeks now.
I believe there are further instructions if you are using Windows 7 but that was not a problem for me as I'm using XP.
If you need further help just send me a pm and I can walk you through it.