How do I migrate comments or just create them with same date/user/etc.?

I just input all my myspace posts by hand into my new wordpress blog, but I want to have the comments there as well. Is there a plug-in that will allow me to create users and then create comments from those users and set the date/time/mood, etc? (Mood probably isn’t that important, I’m just saying I want to copy them exactly as they were on myspace or as close to it as I can get.) Thanks in advance and yes I googled a while but didn’t find much. Thanks : )