I downloaded .151 and installed it to my PC. The files are here:
C:\Program Files\Common Files\Research In Motion\Shared\Loader Files\9530-v4.7.0.151_P4.0.0.186
I am a Verizon customer and I have tried this both with and without the vendor.xml file.
No matter what, when I run the App Loader, it doesn't show the .151 files. I have to browse and manually add the .alx files.
Help!