Hi ! I'd like to install MT but not at the root of my site. What are the consequences regarding those cgi files ? Can I install the mt-static folder as a sub directory and those cgi files as indicated in the quick start installation guide ? I'm sorry, but it is the first time I would be handling an installation having to worry about cgi files ! Thank you in advance.

Actually, you shouldn't install MT in the root. You can put the static files wherever you want, as long as it's web-accessible. During installation, you'll tell the app where they are.
Mr. Reese,
I am sorry to bother you but I contacted support at MovableType.org and they weren’t able to help me so I am pleading with you for your assistance. Anyway, I downloaded the MT4 software and saved it just as your webcast shows how to save to desktop. I then moved into my cgi-bin on my root folder. However, on your computer I noticed it goes into /var/www/cgi-bin/mt4 – and on my site it shows - /www/cgi-bin/mt4 – I am not sure if the /var/ has anything to do with it but if it does please let me know.
Also, one of the cgi scripts is missing – mt-view.cgi – which I noticed when changing the permissions.
Lastly, I keep getting a message that reads - You don't have permission to access /cgi-bin/mt4/ on this server – I don’t know what needs to be changed in order for this to work but if you have a workaround please let me know. I would like to try the product as my company may purchase the full user licenses.
First, don't worry about mt-view.cgi. It shouldn't be there anyways. So your install is correct.
Second, the /var/www vs /www should not matter either.
As for the permission denied error, the problem may relate to how your web server is configured.
First, don't worry about mt-view.cgi. It shouldn't be there anyways. So your install is correct.
Second, the /var/www vs /www should not matter either.
As for the permission denied error, the problem may relate to how your web server is configured.
when I point my browser to /cgi-bin/mt4/mt.cgi I get another error message that says - Got an error: Error opening file '/mt-config.cgi': No such file or directory.
I am not sure where I can gain access to the httpd.conf, but if you know where I can try to see.
I am using a MySQL database setup on cPanel through Register.com.
You need to make a small change in bootstrap.pm as the system is having a problem working out which directory you are running from, see http://www.composing-stick.net/2008/07/cant-find-mt-config-cgi.html for details on how this can be fixed.