I did some poking around at fmres.dll. If you pull up the properties on a .dll in Windows 2k (and supposedly XP), it'll show you the versioning information. I tried this one several dlls, and the information is there. fmres.dll does not look like it has any versioning information embedded in the .dll. I do not know if it's encoded or if Windows is telling the truth.
Thus ends the theory, now the rampant speculation: I'm wondering if Wine is not properly handling the error condition for missing version information.