It is on steam, it's just that in vanilla civ5 it won't be loaded when you click "next" on the mod menu because the game does not allow mod's DLL, only DLC's DLL so the only way to have the DLL loaded at this moment is to have it replace the G+K DLL in the virtual file system.
If G+K is not activated, the "trick" won't work.
so it's there, when you download R.E.D. WWII Edition it's in the mod's folder, named
CvGameCore_Expansion1.dll (that's the DLC DLL name).
The DLL separate download contains exactly the same file, named differently. I should have asked you to move and rename the file from the mod folder to the game installation folder, don't know if it would be easier
Now there are 4 pages in the installation instructions thread, the last 3 are question/answer on how to copy the DLL into the game directory, and the reason why I spend 1 week converting the mod to G+K (and now spend my WE trying to fix the result). Go ahead, read them, ask after
Steps by steps doesn't work, there are too many version of windows, too many personal settings involved... Steps by steps would mean that I have to write one tutorial on 7zip (and rewrite one when I find out some users prefer to use another archive manager), one on file management for XP, one on file management for Vista, one on file management for Seven, and one that I won't know how to write for Windows 8. Sorry I lack times
