To help troubleshoot this issue, can you supply some additional information;

- The contacts that have '(Mobile)" after their name, where these contacts found on your mobile device?

- Do the Mobile Contacts contain valid e-mail address?

Answers to these 2 questions could help determine whether or not these were contacts found on your device and maybe only contained a contact phone number rather then an email address.

To import a .pst file follow these directions;

1. File
2. Open
3. Import/Export
4. Import from another program or file
5. Outlook data file(pst)
6. Locate the pst file you wish to import

Please Note: You will have a choice to handle duplicates. please select the proper duplicate selection.

hope this helps