@田恩睿 It's probably better to keep the menu where it is, or at least in that file, but play around with the structure and CSS to have a left-side menu.
Right now it is pinned to the top using .navbar-fixed-top
Congratulations to http://community.onehundredfreebooks.com - our very first customer for our premium hosting platform (which just entered closed Beta).
We created a custom theme for him as well! We're pretty excited to see this forum grow~