If they filed witht the US for immigration then after 14 years time I would suspect the paper work to be lost or not received.
You may call them direct at
National Customer Service Center (NCSC) at 1-800-375-5283
Or go to the link if you have the case numbers and to the left of the link you can check the status. If nothing is showing then assume that no paperwork was ever received or has been lost in the mail. They very well may need to re-apply. It does not take 14 years to process the paperwork.
http://www.uscis.gov/portal/site/uscis Go to status of case.
Let me know if you need further assistance.
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