Pinboard specialist needed!

Hi,

I’m busy making a travelblog, but there’s some things I can’t get right on my site. Like a header that fits the full page.
2) My site is three column and I would like a horizontal beam between each three entries, marking a new visited city
3) I would like to see all of my posts on the front page even though some are categorised and appear under a different page
4) I would like my site to be a bit funkier!
Who can help me with this? Thanks!