when you open the TTSRES file with a program such as restorator, it has sub directories, the images are in one called bitmap in the english version. I'm assuming for each language version of sonar, the directories in the file change accordingly which is why the patch doesn't currently work.
If you want the faders, I guess you have 2 options at this moment in time:
install the english version of Sonar 8.5
or
download restorator, open the TTSRES85 file and edit the images yourself and patch them into the file.
If you do the patch in a trial version, BE WARNED it affects the whole of sonar because the file also contains all the dialog boxes Sonar uses and renames any tabs and dialog box headers with the restorator trial.