Go to your profile --> seach for the AQ/DF/MQ charcaters squares --> Fill in your charcater's ID's.
That's really everything you have to do.
//D.U.M
Digital X -> RE: Question. (4/14/2010 16:04:55)
Go to "My Profile" up the top, then once you're in there scroll down to "AQ Character ID, DF Character ID and MQ Character ID".
Then type in the ID of that character according to which game you would like, then at the bottom select "Apply" then "Ok" and you're done! As you can see my three character links, under MY avatar. Edit: pipped at post.