Your script is working fine for me.

Quote:

(...)
ftp_download("ftp://www.firoball.de/www/download/4lw.zip", "4lw.zip", "fd-lgkjsröog", "sfkjheifgrelkf");
(...)


Most likely you're missing the www base directory in your path.
Quote:
* Remembering we are in dir ""