The silkroad official site news about downloading their client is confusing, i agree.
I ended up removing the european client i already had and re-downloading it. >_<
...anyway, when i double click on the client, it says "This is a client file that can be used after the Europe update. Users who wish to log into the game quickly on the day of Europe update, please keep the client file ntil the day of Europe update and use it on the very day."
So all my moneys are on this client to work come the 24th ^_^
..also, the news announcement warns against downloading the client on the date of the 24th.