Problem with SEF URL and showing modules

I am facing some problems, I have a website usformula1.org where SEF URL and apache mod_rewrite is enabled and it's perfectly OK in desktop but when I browse it through my Android phone then it's showing 404 error on sub pages. Suppose...it's showing usformula1.org/index.php/races/2011 where it should show usformula1.org/races/2011 without that 'index.php' which causing the error.

And I am also facing some problem showing the modules in correct order and design...for that should I edit the CSS ?

Do you use 3rd party SEF extension?

Each mobile template contains css/custom.css file for users styles.

Sorry for late reply.....I actually didn't get any notification in my inbox on your reply

No, I didn't used any 3rd party SEF extensions here.......So, what do you think what is the problem ?

And I am also getting a render error in my android phone, I attached the screenshot of the error message, please see this issue.