You have a "pribory-09-27.tga.dds" in your package not the "pribory-9-27.tga.dds" which has been mapped in the Su25 cockpit ;). Rather an error in the mapping of the SU25 cockpit.
@Mustang, the texture "pribory-9-27.tga.dds" is missing in the Su25 Cockpit. Its the Seat Texture (old file pribory-09-27.tga.dds).
This is also in the original version ;).
I work on a Textureupdate package for DCSW with one or another 3d model update (priority for the outdated bases). It will be available free.
Too bad, that we can not create complete DSCW Scenerys at the Moment. So many things would be possible ...