Java - Version 7 Update51

Since the new update Java 7 / 51:
There has been issues getting into a game room.
I've read some suggestions in Yahoo help forum suggesting---\Java Control Panel/ Security - Lower Level to medium / in addition @ the Exception Site List; add the location(s) i.e. http://yog38.games.sp2.yahoo.com
I've also added
http://yog7.games.sp2.yahoo.com/yog/y/dot9.jar
then after prompt hit continue, then go back to the game room site and still nothing.
I looked on Oracle(s) website and re-downloaded the Java Update.\

Anyone have any suggestions.
Thanksrolleyes