1. Download the iPhink Tumblr theme here, and unzip it.
2. Log in to your Tumblr account, then, go to Preferences, Customize Your Blog, Theme, Use Custom Html and erase ALL html code that is there.
3. Copy and Paste iPhink’s entire code in it’s place, and then click Save & Close.
By using this theme, you are forbidden to alter the code in anyway.