Illarion.org

when i have download the game it just come up Illarion_vo.4b23, not more
what should i do so i can play?

Bander Bigfoot
A Happy Hobbit On Adventure

I don´t know if I understood you right, but you need to unzip the client before you are able to play.
The most usual programms for doing that are WinZip and WinRar, wich could be both downloaded as a trial version. Just "google" for them.