I couldn't find it too. What do you exactly mean with res file?
.res or a simple resource file. If you have found the right swf, you must delete the "xml/resources.xml" and paste the attachment there, to get to the swf.
Example:
Code:
<file version="1" type="swf" name="ship64" location="graphics_ships" id="ship64" hash="c4d56fd4dc0ced090a4cae3d3072a400" debugView="false"/>

to
Now you can go to this site. You'll find a violet screen. Now press CTRL + S, to save this swf.
You need at this moment a SWF Decompiler. You can get alle png's from this swf, then
Hope you understood, what I mean