Open the edit entry page (http://www.livejournal.com/editjournal.bml?journal=hetalia&itemid=12352431) and click "HTML." Look until you see <lj-embed id="8180">. In front of that, put <lj-cut>(optionally <lj-cut text="cut text">.) At the end of the entry, put </lj-cut>(even if you added custom cut text) and then save the entry.

I can't do it for you since I'm not allowed to edit your entries, but hopefully that will help you a little?