Hi guys! I've been trying to install moveable type on my linux-based go-daddy webserver all damn day and I keep getting the same issue. Everything uploaded to the server fine, but when I try to open the mt.cgi file in my web browser, all I get is a plain-text display of the code within the file! I've tried every browser at my disposal (Flock, Firefox 2.0, Opera, Safari, even a few odd-ball ones) and have gotten the same results, so my guess is that it's a problem server-side I've changed all the permissions (as shown in the installation screencast). I'm a total newbie to this kind of thing, so any help would be appreciated!
Oh, I'm working with MT 4.1 on a Macbook Pro, OS 10.5.2, running Flock 1.2 as my browser (it's mozilla based), and I'm using Cyberduck as my FTP client. Hope that info helps!
Thanks again, dudes.

This was an awfully long time ago, but in case you were still wondering, it means that your server is not processing the files as Perl and just sending them as plain text to the browser.
Try changing the extension of one of mt-check.cgi to .pl and see what happens.
If that works, you need to get onto your host to get .cgi associated with perl