There's no real need to clarify...
Your linked downloads don't mention any MSVC++ Runtime at all, since the default T-Clock distribution is now using GCC.
If by "the thread concerning T-clock"
you've meant this post: http://www.donationc....msg413671#msg413671
Then yes, they liked the SP1 version... Though, my Github page also links to the latest MSVC++ 2010 Runtime which happens to be SP1 (in case someone wants the MSVC version rather than the GCC version)
Whether or not the user is using SP1 or not, shouldn't impact T-Clock directly. The latest version is always recommended, but older versions would work just as fine (usually)