Firstly let me give you some background info

------
1 photoblog site at http://blah.com
new blog setup at http://text.blah.com (site root set to directory in main blog root
MT 4.2x
accept comments enabled on both blah.com blog and text.blah.com blog
------

So the issue happens when anyone tries to comment on http://text.blah.com. They click preview/submit and a POST request is made to mt-comments.cgi and automatically a 301 redirect happens.

CODE
x.x.x.x - - [18/Sep/2008:13:30:57 +0100] "POST /cgi-bin/mt-comments.cgi HTTP/1.1" 301 225 "http://text.blah.com/2008/09/test.html" "Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9) Gecko/2008061712 Firefox/3.0"
x.x.x.x - - [18/Sep/2008:13:30:58 +0100] "GET / HTTP/1.1" 200 4033 "http://text.blah.com/2008/09/test.html" "Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9) Gecko/2008061712 Firefox/3.0"


Now the problem lies in that the redirect does a GET / on blah.com instead of text.blah.com

How do I configure MT to use comments and display them correctly on the second blog, when any POST request to mt-comment.cgi automatically redirects the user to the main blah.com index.html file, which is not right?

Thanks