I have to admit that one of the problems I have had with MovableType is that the comment form does not display on the single post pages. When you look at a post, you have to actually click on a link to get the form to pop up.
A quick google fixed that issue and I’ll copy it below.
What you have to do is edit your mt.js file from within your MT install and comment out the line that includes the following:
You don’t even have to do a rebuild except for that one file. Takes two seconds.
I hope this helps someone.