Here is the link to the official latest RUS GOLD patch (automatically updated in the Steam version) :
ftp://ftp.matrixgames.com/pub/RUS-Gold/RevolutionUnderSiegeGold-Update-v101c.zip
I also tried to solve the problems of this forum discussion : viewtopic.php?f=280&t=49991
Those who want to help to test it can install this kind of mini-patch attached in this post : Unzip it and follow the readme.rtf file instructions :