All of sudden, when I try to go to the MT Publishing Platform to update my blog, I'm getting this error:

Got an error: Error opening file '/mt-config.cgi': No such file or directory

the file *IS* there - I've checked. Plus, I upgraded to the newest version to make sure something wasn't awry, so it's all upgraded, I just don't know what happened. I didn't do anything - I hadn't even posted to my blog in several days.

http://www.motherhood-unscripted.com

The blog's there, but this: http://www.motherhood-unscripted.com/mt/mt.cgi
gets you that error. Help??