For anyone interested this is how I installed the Delta Airlines 777-200 complete with VC to FS9. Installation should be quite straightforward. Please refer to my earlier reply to get the textures to display.
The Delta model has no VC so once it's installed & working properly in FS9 you will need to download the VC model from the Posky website. This is the Rolls-Royce Trent 895 version of the 777-200 so download the second file from the bottom here.
http://www.projectopensky.com/downloads.php?aircraft=842ytv5p8&location=modelpackageThe file description is
VC_SP1_Trent800 (OS772V2_Trent800_VC) & the file name is OS772V2_TRENT800_VC_SP1.zip. Installation is a simple matter of pasting the included model folder into the main folder of your Delta Airlines repaint. Overwrite files/folders when prompted. This will give you an untextured VC with no gauges.
The VC textures are posted here.
http://www.projectopensky.com/downloads.php?aircraft=842ytv5p8&location=panelpackageNote that there are two different options. This is a matter of preference. I chose the DXTBmp textures. Paste all the included textures into the texture folder of your Delta 777.
The VC panel is also posted on the above page. (os777v2_VC_panel_SP1B.zip)
To install it paste the included Panel folder complete with gauges into the main folder of your Delta 777. (Before doing so I renamed the existing panel folder to panel.0 to back it up.)
Now with a bit of luck & a following wind you should have a Delta 777-200 with a full DVC.