#26 phpwslistings 0.3.1 install problem

[cacheman]

I downloaded the file , then upload it to my server, I
extraced all of the files using cpanel and extract all files,
I renamed the folder phpwslistings 0.3.1 that was
created after the unzipping to phpwslistings. I went to
try and bring up the index.php from a browser and it
does not come up. what does come up is the index.html
of my web site. Did i forget to do something? please tell
me what I need to do. I am not very good with php. In
case you need to know I use cpanel with my hosting.
Let me know what I need to do.