How did you install / compile the litespeed?
If php shows as a download, then most likely the php binary is not loaded.
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I had the same problem when I first tried LiteSpeed but managed to sort it in the end. I can't remember what I did to correct it though. I gave up with LiteSpeed in the end as it was a right pain to get my SSL certificate to work with it. They make you provide path instead of just being able to upload file or past the code in. It was driving me nuts, so I uninstalled it in the end.
It took me long enough to figure out how to install SSL in cPanel/WHM. No way am I going to fight with Litespeed too.