when i choose the world the game screen pops up but stay white or blue.
*Facepalm*
READ ME. (http://www.worldscapeblitz.com/blitz/smf/index.php/topic,4290.0.html)
Actually, you should refer to the entire FAQ.
I read that and when i choose a world the game screen remains white nothing on there was like my situation .
I'm not 100% sure but i think it's because your java isn't fully up to date. You should try updating your java to the newest update and maybe that will help. My friend couldn't play this a while back because his java was way to old, he updated it and then it worked for him.
Java was the problem my computer was running it twice thanks for the help.