It is a very old DDR (or SDR?) card - last fw ver.1.2.000 was released back in 2006.
And here are realease notes for fw 1.2.000 on this cards:
http://www.mellanox.com/pdf/firmware/fw-25204-1_2_000-release_notes.pdf
However before trying to upgrade it to 1.2.000 - check if drivers you plan to use have been qualified for this card or fw version.