You could also wrap all of your statistic gathering into a small CGI that responds with a page containing instructions and a right-clickable link. This would allow you to have your cake and eat it too. As a bonus, you could allow the user to specify whether they want an http or ftp link in their request.

PS - In general, you'll probably want to use http links. The ftp option would require that your service provider has set up anonymous FTP ... not likely from the level of service you describe.