I am going to try to keep this post updated, but those that are looking for a quicker download link of SimAppPro can come here. Nothing worst than waiting for 500kbps speeds from servers on the other side of the world!
SimAppPro Setup 1.16.14.exe
SimAppPro Setup 1.16.11.exe
SimAppPro Setup 1.16.10.exe
SimAppPro Setup 1.16.21.exe
Official Website and Download Page, with release notes, is here