Ang,
Are those the Exchange users, or the ones not tied to Exchange (I think you said you have both)?
For both Exchange and non-Exchange you should see all the tabs in IA under Personal Info, per the screenshot...General, Home, Business, Business 2, More Phone Numbers, Internet, and Notes.[ATTACH]702[/ATTACH]
For Exchange users, as stated in the last comment, those can only be updated in Active Directory. Wait 15 minutes and you should see the updated values in IA/Client.
For users without a mailbox (or an Interaction Message Store mailbox, or other mailbox without an associated Directory), you should be able to edit those fields directly.
Also, note that the Properties for a user in the Company Directory in the Client do not come from the database, but from the Registry (which is where IA stores those values), so putting those values in the database won't do any good. That's just informational rather than being the actual settings used by the system.