First of all, my apologies for the delayed reply. Second, here are some new things to try:
The link higher up in the thread is out of date. It should be:
And also, you must have “Service Pack 1” of Windows 7 according to this page. Note that SP1 should be installed before installing SyncroSim because (I suspect) that the setup pack’s “VC ++ Merge Module” installer will silently not work if you don’t have at least this version.
Please try these steps and let us know if that resolves your problem.