Need help with layout and basic things on my first wordpress website.

i’m just starting to make my first website with wordpress. the link is this: http://www.jed-media.com/

the things which i would like to do to it include:

removing the square box on the right of the screen. unless it is useful because i don’t know what it’s for.

how do i take the uncategorised button of my website?

where is the button where i can find out if some pages allow comments and which pages don’t.

also i don’t know what i want to do to start this website, what i mean is like an introduction it’s going to be my photography portfolio.

what SEO things should do like meta tags? i’m a noob at SEO. same with SEO for my blog.

thanks

[closed as duplicate – continue with http://wordpress.org/support/topic/need-help-with-layout-and-basic-things-on-my-first-wordpress-website?replies=5 ]