MyBB Source

i have a problem. whiel installing some plugin, my index.php got messed up. the threads and post number column are left aligned. how can i get it to center align. and also the the last post at the farthest right is left align i need it to be right aligned.
i think its on global.css but dont know where? can anyone help?

thanks

I got a simple solution. Take a normal mybb unedited one and overwrite.

index templates? or header?