On my old website without drupal all download files were in a folder "download".

I just moved them to new drupal-website were they are now accessible at http://www.x.com/sites/x.com/files/download/filename.pdf

How can I acces them unter the old url /download/filename.pdf without mapping every file with redirect modul?

I also want, that files I upload with drupal file field to be linked with the short url.

Redirect with .htaccess or with symbolic link on server file systems seems not to be a solution, because I run a multi site installation ...

URL-Forwarding in .htaccess seem not to be proper for me, because I want, that the short URL are shown in the users broweser and not the long ones.

Rewrite rules too (I just dont know how to write them)

Any suggestions how to solve this?

Martin