Deleting contacts in Address Book?

I've tried out iChat and have added 2 friends and iChat has added 2 more contact entries for each of those buddies. Now I can't delete them, or know how to. I thought I could just right click & delete or just drag to the trash but nothing happens.

I'm sure its user error [since I'm new to Mac's] but why can't I delete and/or why would it add another contact for a contact I already have?

Anyways, help me understand what's going on here with the contacts and what not. I'd basically like to just add my buddies I already have to the iChat buddies but not sure what I'm doing.

HELP!

Alright I figured it out. I didn't think to just hit the DELETE button. Actually simple!