Black Pearl Theme Questions

Hi!
I am using the Black Pearl Theme and have a couple questions..

1) How do I load a video to the home page? I want a video to show instead of a picture. I have been doing this under portfolios but can’t seem to get it to show on the home page.

2) Also within the portfolio, how do I move the text so it is under the picture instead of to the right?

3) Lastly how do I remove “Comments are closed for this article.” off of pages?

Thanks so much!!