The new installer did the trick, aparently I was using an older version..... either way I re downloaded and everything is working now.
THANK YOU VERY MUCH FOR THE HELP.....
PLEASE tell me how to fix this but ONLY if you know for sure what your doing.. I have re installed the entire game client like 10 times and I am NOT kidding. (ready to scream) Every time I try to re install or change something in this mod pack I get this error msg when trying to sign in..