Hello sweetie, This is youe new sidebar! To find this in the html, press ctrl + f and then type in SIDEBAR. The sidebar is a set height so unless you want to alter the height of the image also. To make editing your theme easier i will explain the theme.

Miss pretty theme
Code:http://pastebay.com/139777

Here you can put anything you like.

Suggestions:
Blogroll
Faq
Ask box
Things you like

Box will scroll if needed :)