well if you actually look at the link provided, there's only one v 46.15 68060.library, and that's the one you want. WHY ? because it's latest.
and there's no flash update for CSPPC, cause it doesn't have a flashable rom. You're getting mixed up with BPPC.
I think you had better have another look at the three flash update files found at that site. They are all labeled "
BlizzardPPC 040/060, CSPPC and CSMK3".
See that "CSPPC" in the middle, to me that stands for Cyberstorm PPC cards.
Now, maybe you are right and the CSPPC cards can't be flashed if what you say is correct and they don't have a "flashable rom", but the flash files are clearly labeled for all three different Phase5 boards.
As for your other comment, "latest files" should be the best, but in practice, sometimes they are found not to be in certain circumstances, or on certain boards. That is why I asked my questions.
Edit: Also, if the latest 060 library is always the best for all boards in all circumstances, why keep the older version available on the site for download if no one is ever going to need it?