DO NOT give your ftp account password to others.
and DO NOT make your ftp file directly accessed by http.
you may invite hackers to come over to your machine
and do harmful things that you never imagine.
You can use online FREE storage for your friends to
get the files you will put there. For example,
1. Yahoo!Group (can provide http:// link as well),
2. http://www.4shared.com/
3. http://www.xdriver.com/