Thanks for the reply. I'm unsure how you found about that error and i've looked into the .htaccess file and this is what is in it and only goes down to line 14?
That was the whole point of my post, all you successfully did in your first post was tell us your problem. You failed to give us any information what so ever to help you solve your problem.
Have you looked at your servers error logs, and raw access logs?
Have you succeeded in getting any rewrites working on the server?
It might have to do with how you are telling it to rewrite, it most likely is thinking index.php should be a folder not a file.