I'm not sure exactly. Do you mean you want your site to look like the demo for that addon? In general, a CMS such as Concrete5 separates the content from the overall theme style -- so it makes sense that if you already have a site with certain content on it and then change your theme, the content is not going to change (it's just going to look different).
But I could be wrong or misunderstanding something -- I think your best bet is to ask the author of that theme by clicking the "Support" link in the sidebar of its marketplace page.

yes i want it to like that one, i'm not actually gonna use it i just wan't to know how its setup cause i have a difficult time styling up certain things. . . if its wrong to do so well i wont, thanks for the help in advance, i'm using it local by the way its not for a real site!