Ubuntu :: Apache Won't Update Htdocs Files?

I've installed Apache 2 on Ubuntu linux 10.04 as a simple LAN site for testing PHP scripts. But even though I've deleted the default index.html file in htdocs, changed the index file to index.php, put an index.php, chmoded to 775, and gave ownership of the folder to my account, it will not update any of the files. Any time I go to 127.0.1.1 or 127.0.0.1 (Both work, somehow), it has the "It works!" page instead of the page I put there. And yes, I've tried restarting apache, restarting my computer, etc. What's the problem and/or how do I fix it?

tl;dr: Apache keeps displaying the "It works" page even though I've replaced it. How do I fix it?