I have a CPUZ.ini file, Readme.txt and Whatsnew.txt files in the CPU-Z folder along with the executable and uninstaller but even if I run CPUZ v1.60.1 outside that folder in, say, my otherwise empty download folder then it still misreports the BCLK, multiplier and, thus, clock and RAM speeds. CPUZ v1.60 and earlier versions work fine, however.
The release notes for v1.60.1 mention a fix for misreported clock speeds under Windows 8 and it seems to me that it is this particular fix which may be the cause of the bug under Windows 7, though I confess I'm no expert. Seems a bit of a coincidence that the error occurs under Windows 7 for the very thing that is supposed to fixed under Windows 8.
Not that it matters that much as I can just continue using v1.60 for now as it works absolutely fine.