I got a problem with the Wordpress..

the site is already finished.but i need to put the Intro page at the beginning of the site. i don't know where do i have to put it in the directory. the problem is when i changed the intro page to index.php, i can't go to any links.it always redirect to the intro page again and again..

i want intro page to be the first. how do i add the page at the beginning in Word press?
any suggestion...

thank you..