Help 3 questions

Hello

I want to make the recent post looks like this picture:

https://im81.gulfup.com/ImvWD5.jpg

The thumbnails is on the right with size 100*100 for every thumb, and without the content of the post with the page number in the end, what should I do? Plugin? or edit php file?

Also, I want to make the scale of my site smaller like it have background then the content, like this pic;

https://i0.wp.com/themes.svn.www.ads-software.com/daisychain/1.1.1/screenshot.png?w=1142&strip=all

What I mean is the brown color, all the page is brown then it have the content as smaller page.

I’d like to add a sidebar in the main page

look: https://i0.wp.com/themes.svn.www.ads-software.com/nirvana/1.0.6/screenshot.png?w=1142&strip=all

right the Sunday Morning and under the slider I want to add a sidebar…

Thanks in advance…