Problem with free links script

I uploaded everything and all of it seems to work great but I have one problem I can not get in into my admin site.
I can get to the site where it says to "Please enter a valid password"
but when I enter the password it says this :

NOT FOUND
The requested URL /usr/bin/perl was not found on this server

please can anyone help me.

thanks

Myz
Not to insult you but did you follow the instructions in the readme.txt?
The links.pl must be uploaded as an ASCII file and then changed to 755.
and it must be uploaded to the cgi-bin folder on your server.
If all was done correctly and it still doesn't work, check to see what server your host is using; UNIX or WINDOWS.

Hello,
thanks for your answer, and for trying to help.
I did upload links.pl in ASCII-mode to my cgi-bin directory
and changed mode to 755 (-rwxr-xr-x).
It still gives me same error.
At my server it says that /usr/bin/perl is my perl directory.
It is a LINUX server.

I am not a specialist in this stuff so please help me if you can.
thanks again
This is what I have so take a look (links.pl) :

# url of script
$cgiurl = "/usr/bin/perl";

# base url to all link files without trailing "/"
$link_url = "http://www.mysite.com/links";

# base directory to all link files from the server root without trailing "/"
$base_dir = "/home/usr/you/links";

# default index page of your choice
$index_url = "http://www.mysite.com/links/ffa-business.html";

# counter log file
$id_count = "links_id.txt";

# administration password
$admin_pass = "123";

# time to redirect to link page after entry (sec)
$redirect_sec = "3";

# use file locking; ($lock=0 for Win32)
$lock = 1;

# time offset - add one hour = +1 ; subtract one hour = -1
$fix_time = 0;

# image
$imageurl = "arrow.gif";