how to get rid of locked contacts

[cmfcl]

I need help with this phone!!!! When I first got the phone, it automatically have contacts in the phone. My problem is getting the ones that are locked out of my contacts. It just say <unnamed>....is shows a little sim symbol with a lock on it... i want to get rid of it. I called at&t, they don't even know how. Please if someone can tell me step by step how to get rid of it....I really appreciate it...Thanks.