I haven't been able to use simufiles.com. I thought it was operative, if not please discard this message and accept my excuses.
Anyway, the problem is I've tried to acces simufiles from several different places (home, work, ...) and always get to the page, even I can log in, but I can't upload any file. It gives some kind of access permissions error or something when pushing the upload button:
Btw, I use files.simutrans-germany.com and works fine.