I just noticed that my Sony A700 is running Ver.3 and there is a Ver.4

I found this web sight http://esupport.sony.com/US/perl/swu...d=3757&os_id=7

But for the life of me I cant work out what to do, I keep downloading the firmware but then I cant find it on the computer.

Has anyone done this before that may be able to give me some help.