Simufiles.com not working?

[Zeno]

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:

Warning: copy(upload/preview.png) [function.copy]: failed to open stream: Permission denied in /home/sf/public_html/upload.php on line 146
ERROR
preview.png --
the file could not be uploaded

Btw, I use files.simutrans-germany.com and works fine.

[Isaac Eiland-Hall]

I'll take a look at it.