How would that allow the score board to fit? Each user is given 11 integers and 5 strings of 50 characters. If you cannot fit one user's data in one UserInfo storage block, then you would not be able to fit 10 user's data in 10 UserInfo storage blocks (as so on). Opening the data to the public will not give you any more storage, and each user would still only be able to change their own block anyway.
The score board GUI is what I meant
I cant get it to show on my scenario because the size of the scenario is too small
I think what you mean is the ScoreBoard support class provided with the later version(s) of Greenfoot. You can either modify the code by adjusting the image sizes and the locations at which they are drawn on the main image; or, create your own class code to fit.
I don't know how to use the user info class though
and the last time I tried to edit the score board class, I messed up and it only showed one score
What 'super' call are you using for your world?