Loops on pages

Hi,

I’m using a custom page for the index page of a theme i’m building. Is it possible to place a loop in it? I’ve done so but it’s only looping the page I’ve assigned it to i.e; home. I’ve put a loop on the default index page which I want to loop with but it’s still only looping the page as the sole item within the loop. How do I specify the loop to target posts rather than pages?