Fixing The Words
Changing The Appearance
Then, play with any colors to give more visual impact. It's better to know every elements inside the system so you can style it with CSS. By the way, simply follow this guide.
If you are using default blogger template things would be much easy. But if you have a customized template you will have to add some codes and play around with your template. Go through this post including all comments to make it happens to your blog.
Adding Reply Option
You must have noticed that Blogger system does not have 'Reply' option to it comments. With a very little change to your template you can add this hack to your blog. Read this.
Styling Author Comments
Blogger doesn't indicate author comments in any way that can be accessed through a CSS rule. So, to make blog author's comment more noticeable, Jeremy Martin has written useful jQuery script and very clear explanation in his article.