> So it would seem that the page is copied. But, is is
> not on my harddisk... fileslocation/url/dir1/dir2/
> is missing this file.

Did you interrupt the mirror ? This may explain why the file is missing.

> So I looked in the new.zip for the file, and there

new.zip is only a cache for original data (needed to update the mirror) ; but
the modified file should be present on the filesytem too!