Hello stevensh,
I understand that you are inquiring about you receiving a replacement motherboard with an older BIOS.
It is possible that you may have gotten a motherboard with an older BIOS but usually this is not the case we usually will ship the replacement motherboards with a recent BIOS.
At this time you can try a BIOS recovery update that sometimes will allow you to update the BIOS, if it does not work, you will need to get an older processor to update the BIOS or contact the warranty department again and check for the possible options for you.
Here are the BIOS recovery instructions:
http://www.intel.com/support/motherboards/desktop/sb/CS-023360.htm?wapkw=bios+recovery+instructions
Regards.
PV