Is there a possibility to separate or not to show date and time on the preview? as you can see now preview do not place any blank space between time and first letter of the post...
You must download the file through the FTP.
Then alter it as described, then upload it again to the same spot of course.
Here is my altered version you can try out.
But, rename your original version first (just for your own safety) to something like 1comment.class.php
comment-20100130.zip