I had problems with Munsters LE updating to 1.02 - same issue as described above. I tried renaming from ...spk.001.000 to .spk, and got told it was an invalid file. I reformatted my USB and did exactly what they say to do in the README and it worked. Copied the munsters_le-1_02_0.spk.000.001 file -- didn't rename it. Worked fine. Hope reformatting works (mine was already FAT32, but that seemed to do the trick). The USB came with Black Knight code on it from a dealer I bought the Munsters pin from -- bizarre that it wouldn't work without reformatting the USB stick.