I created a document about how to install Local Astrometry.Net to work with SGP. Please proofread and let me know if I missed something or there may be a better or easier way. I got this working in three different Windows OS like Windows Vista 32 bit, Windows 7 64 bits and Windows 8.1 64 bits.
Update: Updated document to say that it may not be necessary to install Cygwin if Astrotortilla also installs Cygwin. I also did further clean up of the document.