I need a little bit more information to see where it goes wrong.
Have you read and followed these instructions: http://www.youjoomla.com/joomla_supp...ructions.html?
Also, what template are we talking about?
Last, a little suggestion. I suppose you have installed the demo installation of the template locally, and started edditing that. Maybe it's a good idea to make 2 copies, one without editting and one to edit. This way you can always check how the settings are in the original.