Removing Comment Section Saving HTML

Picolight is a clean and simple template, but I’ve got two unresolved issues:

(1) I want to edit/delete the “reply” section and comment box at the bottom of the page and had no luck in locating where this could be done. On dashboard, I clicked on “Edit” in “Appearance” and checked style sheets and went through variouis PHP folders, but to no avail.

(2) I want to edit the “home” link that’s below the header. I want to swap out “home” with new copy and change the color. I can make changes to the HTML in Firebug, so I know I’m make the right edits. But I can’t seem to find where I can make the actual HTML changes in the template.