[Pages] and Turning them into subpages.

I've tried several different plugins (through the search :P) , and none of them worked. They displayed a "Parent Page" in the edit screen, but displayed no new option under it. (And I've tried different browsers)

I want to be able to change a page, and if it's a parent, or move it to be under a different parent.

Is there a working plugin for 1.8.x? Have I missed one?