I've pressed Reload in my web browser several times, but the old file keeps coming up. I've tested them at the shell and they work fine. Some CGI tutorials or scripts will tell you that you need to install the script in the system's cgi-bin directory. This is not the case with Interlog. You do not need to keep your CGIs in a special directory of any kind in order for them to be recognized as CGIs.
Many scripts come with a file extension of .pl.
As with many CGI scripts, these are just PERL scripts. Instead it will just display on the screen as plain text. This stands for move myscript.pl to myscript.cgi . Note that this isn't the only way you can rename your file. Another option would be to rename it on your home computer and then re-upload it.