those are not the firmware files. your correct file are in the downloads section of topsony. you have two methods to gain access to download these files, 1: you pbuy your rights. 2: you be registered to topsony for 2months and you must have written 20 posts(which i see you dont meet any of the criterias).
the 1st file you mentioned is the FS file, you still need to get the MAIN file.