What happened to the Beatrice Foods retirement plan?

I worked for a BFC subsidiary form 1967 to 1983. When I left I had a small vested pension. Sometime around 2004 or 2005 I spoke with someone in Chicago who confirmed my account. I will be 65 in October 2008 and have recently tried to contact that office but the number s no longer in service. I was able to contact my forrmer employer who gave me an address in Chicage to inquire about my pension. The address is: Conagra Retirement Services

PO Box 991

Deerfield IL 60015-0991 Bill