afaik you shouldn't use older flowrebuilder, use the newest 188.8.131.52, and the programmer PS3 Infectus Double NAND programmer V1.41 -NDT i had no luck, couldn't write or anything, had a lot of problems.
have uploaded the tools that made my flashing possible: http://www.multiupload.com/8FHWPEO72O
But for your information i made my dumps with another application not this one so you should be fine, install libusb and choose youre infectus and install, that makes the infectus show up in this flasher app.
Please let me know if you need anymore help!
See here: http://www.ps3news.com/forums/ps3-gu...nd-120285.html