Is there a way to import only a specific post's comments?

I just installed and tried to import the comments into Intense Debate from wordpress and after about 50 comments it started giving me errors saying the MySQL was missing??

Then when I tried to do it again it added the same comments so that I had double comments all over. I don't know how to fix this without going through and manually deleting tons and tons of comments.

Please help, I really want to use your system!