Resolved! I don't know if you have resolved or not, but i'm doing a simple thing here: i just copied all the content from the original CD, that's mean, CTRL+C on SFP dir on the CD and CTRL+V in the root of my drive (C:) where is installed the SFP (C:SFP).
*THEN!!!* Go to command prompt, go to "C:SFP" and do an "ATTRIB -r -s -h /s" on all the subdirs (it takes just a few seconds), and *THEN* right-click the SFP directory from Explorer, if you notice a checked and/or grayed out mark near "Read-only", please, remove the check-mark then apply. And now, here we go!