Are there any requirements to join this ladder? Any player who has unlocked all the settings and maps used on this ladder can join. As far as I can tell, the minimum level is 53. If you have an old grandfathered account or have purchased the strategy and map packs, then you should be able to join regardless of your level.
even when i am 53 i still cant join... i tried after 3 hours, after updated, tried to delete coockies... nothing helped... well will try tomorrow also, if it will still not work, seems that houston i have a problem :)