Here's how to add the ShareThis button to a MovableType 4 blog:
- Register at ShareThis, get the base code from their customization tool. It looks something like this:
This code provides the base functionality for the ShareThis button.
- Paste that (your) code into the header template between <head> and </head>, so it will be included on every page. Save.
- Go to the template(s) of the page where you want the ShareThis button. This would normally be the entry-related templates. Paste the following code into the place where you want the button to appear, e.g. within the asset-footer div tags to have the button below an entry.
- Rebuild your blog and the ShareThis buttons will appear.