vmtk 1.2 it is now available as a python egg also for Windows7/8 64bit with Python Anaconda. Anaconda is a completely free Python distribution (including for commercial use and redistribution). It includes over 195 of the most popular Python packages for science, math, engineering, data analysis.
You can download it from this link or you will find in All downloads page.
Thanks to Adamos Kyriakou from pyScience blog for his contribution!