well when i make someone a mod or admin isnt their name supposed to be a diffrent color, and under their name it says mod? what can i do?

have a read here, it explains about modifying groups, adding colour and showing in the legend/username: here

Yeah but when you post isnt it suppose to have your name colored?

it should be coloured in the mini profile, if it isnt make sure you have enabled colourize usernames in admin>>users and groups>>>user settings and make sure the groups they are in have colour user names ticked and the groups are not hidden.