Here's a simple little script I made that displays grammatically correct comment counts in Movabletype:
;
if ($count==0){$output="no comments yet";}
if ($count==1){$output="1 comment";}
if ($count >1){$output="$count comments";}
print $output;
?>
Installing this bit of code will avoid problems like "0 comments" and "1
comments". If there are no comments, it will say "no comments yet", and
if there is only one comment, it will say "1 comment" using the singular
form.
Obviously you need to be running PHP for this to work, and so your files
should have the extension ".php". You can change this from the default
(html) in Movabletype's weblog config panel.
If you want to have the comment count work as a link to where users can
leave a comment, you need to add a hyperlink into your code. The code
below uses the default Movabletype hyperlink setup with a popup window:
;
if ($count==0){$output="no comments yet";}
if ($count==1){$output="1 comment";}
if ($count >1){$output="$count comments";}
print $output;
?>
I'm not sure what MT 3.0 does, but this code works fine with vers. 2.64.