why would you want to do this?
index.php is the homepage! surely this would be creating an infinite loop
myspacelayoutspimp.com/ is myspacelayoutspimp.com/index.php so you are trying to redirect a page to itself!
infinite loop =
myspacelayoutspimp.com/index.php -> redirects to -> myspacelayoutspimp.com/
myspacelayoutspimp.com/ -> redirects to -> myspacelayoutspimp.com/index.php
myspacelayoutspimp.com/index.php -> redirects to -> myspacelayoutspimp.com/
myspacelayoutspimp.com/ -> redirects to -> myspacelayoutspimp.com/index.php
myspacelayoutspimp.com/index.php -> redirects to -> myspacelayoutspimp.com/ etc etc
just change the HOME link on your pages to <a href="/">HOME</a> instead of <a href="/index.php">HOME</a>