Okay just got back at home.
I'm trying to flash both combined and vanilla.. This is what I did, downloaded the flash utility, downloaded the global pr 1.3 version since my device is italian (Did I download the right one?) and the latest vanilla one, then openend cmd as administrator, pasted the two bin files in the flasher folder, navigated to it and used the command in the guide but nothing happens when I try to flash rootfs of fiasco image: http://i.imgur.com/wdwSiiu.png
Just tried reflashing eMMC and everything goes fine but when I try to flash the fiasco image with the rootfs command (flasher-3.5 -F RX-51_2009SE_20.2010.36-2_PR_COMBINED_MR0_ARM.bin --flash-only=rootfs -f) it works only after it reboots which is not normal..
I also found the latest version of the flasher fpr anyone who needs it: http://www.fileden.com/files/2007/9/....5_2.5.2.2.zip