...exactly *How* are you syncing? Via iTunes, etc., etc.(?) Be as detailed as you can if possible.
I have my contacts on the iPhone with name and phone number. On my PC in Outlook Express I have more email addresses/contacts but no phone numbers. If I sync my iPhone with my PC contacts will it overwrite everything in my iPhone with the email contacts, or will it add the PC email contacts to the iPhone contacts.
I'd hate to loose all my phone numbers.