Never mind; vegas is asking me to install the components which it already has and ready to be installed. I'm going to crawl in a corner right now and shoot myself in the face. Sorry and thank you for the help.
You installed them all and did a restart yeh? Usually the C++ are included with the install on the disk somewhere. Have you tried running the install in compatibility mode? Sorry Im not familiar with the program, but is there and update for it? Maybe someone with more experience with the program can help you.
EDIT Sorry I missed your post above as I was typing this one.
if i can translate : I believe the OP is stating that the Sony app was asking if it could install something that was already on the CD and the OP made a silly and thought something else needed to be obtained. Comical mistake we've all made them and all wish every problem was so easily solved.
1. Install and When you get the error don't click nothing.
2. search for the file "sftrans1" or "mcplug" or "sfvstwra" no quotes (because the files are unpacked now in a temp folder)
2. Copy this folder and paste on desktop. My folder name is "SonyInstall_1"
3. Now install from desktop