VistaVision is tracked in the Ink Number column. Go to the Film Settings first and set the Ink Number settings to Keykode and the “count” as vistavision. The ink numbers values entered after setting it as such will count as 8 frames per count.
Yes, all recent versions of FilmScribe are designed to work as standalone applications with full functionality for both Man and PC. All of the Avid Xpress Pro installers for OSX contain the FilmScribe installer. It is not part of the goodies folder but part of the main installer. Email me at michael@24p.com and I can get you a copy.