I didn't have any luck finding a tutorial to follow, so I fiddled around until I came up with the right combination and here it is!
1. Of course you begin every similar tutorial like this by going to the html editor of your blog, and downloading the template. That is unless you're like me (read: lazy), and don't. It's up to you.
2. Search for the following code:
.avatar-image-container {
3. Right under that, paste this code:
-moz-border-radius: 20px !important;-webkit-border-radius: 20px !important;-goog-ms-border-radius: 20px !important;border-radius: 20px !important;
4. Save your template, and go check it out! The preview won't work in this situation, because the comments don't show up on the home page.
Enjoy!



