Pop-up comments

Hey there, im really noob into php code and i’d be great if you guys could give me a hand.

So, i’d like to know how can i set the comments page to appear in a pop-up window.
If there’s somekind of code and where should i paste it.

And also i’d like to know how can i remove the «Home About RSS Feed»
Stuff from the main page.

Thank you

ps: i’ve just find out that i wanna remove also the ‘(Edit this?)’ that appears at the bottom of each post.