How to customize archive page and "related posts" for better navigation?

Hello, I have 2 questions actually, both are related to customizing navigation on my blog. Basically, I'm trying to have my blog function the same way as Steve Pavlina's blog.

1.) I'm trying to "customize" the standard archive page in Wordpress to look like Steve Pavlina's here:

Personal Development Blog Archives

I like how he has it organized by every month, and then under each month he has the date and title of each blog post.

2.) At the end of every one of his blog posts, he has a "read related articles" show up at the bottom. See this blog post (or any other one of his for that matter), and scroll down to the bottom where it says "read related articles":

Self-Discipline: Acceptance

I believe both of these things can be programmed into the custom_functions.php just one time, and then they would be automatically generated every time I write a new blog post.

I don't know much about PHP coding though, so I'm not sure how to customize my archives page and blog posts to do these functions.
Does anyone know how to do this, or maybe have a resource that they can point me to?

Thanks a lot!