Most Iphone 3GS contacts on phone are duplicated, can't delete contacts to

Question

Most of the contacts on my 3GS are duplicates. I am not using MobileMe. I sync with Outlook. My Outlook contacts are not duplicated.
I tried "replace all contacts on this iPHone with PC contacts" in itunes, but that didn't fix it.
I tried syncing with sync contacts unchecked, but that didn't remove the contacts from the iPHone.
People in other posts have talked about going to Settings > Mail, Contacts, Calendar and selecting an Account and tellint it to delete contacts, but none of my accounts have that option (i only have 2 mail accounts showing).
I don't mind deleting all contacts on the phone, as I can replace them from my Outlook contacts, which are up to date and not in duplicate.
I think this may have happened because I have 2 groups of contacts in Outlook, which are mostly duplicates of each other (one for me and one for my husband). But I only selected my group to sync, and my group is not duplicated.
Can anyone help me please?
Thank you.

Answer 1

Disable auto sync when an ipod/iphone is connected under preferences in itunes. This will be under the edit menu.
Then, reset your sync history:
1. Open iTunes.
2. From the Edit menu, choose Preferences.
3. Click the Devices tab.
4. Click the Reset Sync History button.
Next, connect your phone:
1. Select the device in iTunes and click the Info tab.
3. Select the group you want on your phone.
2. Scroll down to the Advanced section and under "Replace information on this iPhone/iPod" make sure Contacts are selected.
3. Click Apply.
See it that fixes things.