Here is a simple login front end to a Java FTP client applet based on UnlimitedFTP to access the FTP site (you still need a user and password set up for FTP access):

The above ftp client is provided just as a web-based convenience method, as not many of us have native ftp clients anymore.
You can still use your existing clients or the commandline ftp.

You can also browse to the ftp site for downloads: ftp.canturkisci.com.