Need help with website appearance

I have had my website recently set up and although I’m happy with it there are some details I need to fix.

Here is my site: http://www.differentclassradio.co.uk

Basically when I put text on the main page it all appears very bunched up and ugly.
I also need a way to put dj mixes on the page with a picture link etc. but every time i try it looks crap.

Would appreciate some help,

thanks

Liam