Can’t post comments…Help please…

Hi guys. I really need some help. Ever since I installed an “AJAX Comments” plugin (deleted now and reinstalled WP), my theme has been screwed up ??

I have been working on this theme for 2 days now and I’m not going to delete it…There’s no way in hell.

If I’m logged in and I try to post a comment, it just redirects me to the index.php page when I click “Submit Comment”. If I’m logged out and as a guest, It gives this error:

“Not Found
Sorry, but you are looking for something that isn’t here.”

Any ideas? ?? I was really hoping to get my blog up today.

Thanks guys!
Elliott

EDIT: It must be something wrong with my theme because when I try to post comments with the Default theme, it works fine. Does anyone have any ideas for where I should start to look? ??

I only have 6 files in my theme folder, and those are: index.php, header.php, footer.php, sidebar.php, comments.php, and style.css; so it has to be one of them!