FTP CGI Error

I've FTPd up CGI scripts but get a 500 error

CGI Scripts must be installed correctly, otherwise an error will occur. The most common problems encountered with cgi scripts are:

• the script must be FTPd in ASCII mode;
• the script must be written as a plain text file (i.e. do not create it in Word etc. Create scripts in notepad, or a specialised application);
• scripts must be executable. To make your script executable, please go to your control panel and follow the "set file permissions" link; and
• the syntax in a script must be correct.

If you get a 500 error when running a perl script, please go to your control panel and run the "check a perl script" link, this will tell you which of the above has gone wrong and how to fix it.