Where are email contacts stored.

I have the Droid X w/2.2.1. When I email only one email address pops up as a suggestion. I went to google mail on line/contacts, and there are 4 shown.
2 do not have a name, when I enter a name they are removed and placed on a different list. When I try to add another contact to this list, I cannot.
Anyone know how to add email addresses, not to the telephone numbers list.