Hello Folks,
Just got off the phone with Boris FX Support techs who helped me reolve this issue in seconds on my Version of Sony Vegas Pro 10 (64bit) on my Windows 7 installation. Very good they are too.
I too could not see many filters for BCC 7.
You need to go to the following folder and delete it. (If your unsure back it up to a safe place first)
C:\Users\*username*\AppData\Local\Sony\Vegas Pro\10.0 folder.
Once deleted start Sony Vegas Pro 10 64 Bit and then check your Plugin Manager they should all now be there.
Kind regards,
Shaun.