How to install russian language?

Hello... few days ago i've installed Joomla OT Green pro theme with virtuemart (Joomla! 2.5.7). Work perfect but.
When I tried to change language to russian:
Go to Extentions->Language manager
http://imageshack.us/photo/my-images/696/11883038.jpg/
Then choose Install Language
http://imageshack.us/photo/my-images/26/86061471.jpg/
Try to install
http://imageshack.us/photo/my-images/6/49579745.jpg/
But she said:
"Install path does not exist
Error installing Russian Try again later or contact the language team coordinator"
http://imageshack.us/photo/my-images/547/30675822.jpg/

I try to install language for different versions through Install->Upload Package File. Doesn't work.

What i need to do to solve that problem?

Hello,

Before install update you should clear cache first by click Purge cache button.

Thanks

I tried ...
After Purge Cache it's sad:
"Purged updates" or "Purged updates 1 site disabled"

But if i try to change language: Install path does not exist and
Error installing Russian Try again later or contact the language team coordinator
Again.

Maybe there are other ways to solve problem?
P.S. i try pure "OT Green pro" template "as is". Unchanged.
Try to install language on this template if you have it.

Did you install russian language first ?

Nope.
First of all i'd install OT Green Pro QuickStart.
It works. That's all what i do.
How can i install rus language on this template? It's my question. :dry:

You can download Russian language package here and install it!

extensions.joomla.org/extensions/languag...tions-for-joomla/393

Thanks