The css has many areas that can be edited fore size but im pretty sure there is code to edit as well. with in the config you can turn off fieds that you don't want to see.
Yes i see... Well that is version 1.6 ported over to phpnuke there is a new version of the roster avilable and all the css is with in one file. Them filed were made to no wrap so the text will not goto another line and there fore some of the text in the fields are long which makes the roster larger. With 1.7 the fields can be turned off or the css test px and nowrap could possibly be found in it to be changed.