How to make a page Show up on index through php

I have word press automatically creating a home page. for the site and i was wondering how i would make this page show up on the home page of the themes i created for it.

Something like get page my id or name. I have looked high and low and haven't been able to find any thing to help me. Any help would be appreciated.\

Or how do i make word press show a certain page on the home page on install of the new blog.