hope everyone is ok

please I need help to choose which firmware to flash to my N9, I used to flashing symbian devices some years ago, but it's a little different with N9

my product code in 059j203 which refers to central Europe and software info shows v 40.2012.21-3_PR_006

I couldn't find a working link for 006, but found the whole firmware files for its actual product code which is 001, is it ok to flash using these files?

I saw 339 or 480 files, what are these??

sorry for the noob qusetions