pages not loading Facebook mobile ?

The files(index.php for example) are not the same on the mobile site as the main site. This could be why you are attempting to access a page from the main site on the mobile site, it is not a simple replacement of 'www.' with 'm.' . The sites are different, and run seperately. Another reason for this occuring is you might be attempting to access a page you simply don't have permissions to access, therfore you are being redirected to the home page or the error which you stated.