Is anyone aware of an existing Pluna livery for the FSX 707? Would love some assistance if such a beast exists. Thanks!

Sorry, but I don't know. Check to see if there is one for the Legendary 707. To do that, check-in to Your Profile > Product (707 Captain (707-300)) > Get Free Liveries. Once there, select the Legendary 707 (instead of the 707 Captain) and search through the liveries there. The Legendary 707 liveries are compatible with the 767 Captain, with only a few small changes.

You can also search the Avsim library to see if one exists. Or Flightsim.com, Simviation.com or any other place that stores 3rd party liveries.

Sorry. But that's the best I can do for you.

1). Copy the texture.cfg from one of the liveries that come with the 707.
2) You might need to rename some of the BMP's to match what is the names of the ones needed for the 707 Captain. Just look in the texture file of a livery that comes with the 707 to see the names of the files.

If you have DXTBmp.exe, you can open both BMP and DDS files so you can see which textures are which, and if they need renaming.