Advise required on Plextor 807A firmware update

So what do I actually need and how do I actually update the firmware of the Plextor 807A. The drive has version 101 installed and I would like to move up to a newer version.
Many Thanks
gamaman

Please take a look at this page:

http://www.plextor.be/English/technical/downld_firmw_708A.html

Thanx
I upgraded to 104,