FAQ 174 currently reads:
If your Modify Journal page (http://www.livejournal.com/modify.bml) is missing some options, then your journal is set to use the S2 style system. Some options, such as the ability to enter overrides, do not apply to the S2 style system, so these are not shown if you are using S2.
Please see http://www.livejournal.com/support/faqbrowse.bml?faqid=173 for information on each style system and advice on which style system is the most suitable for use with your journal. Information on switching your journal between the S1 and S2 style systems can be found at http://www.livejournal.com/support/faqbrowse.bml?faqid=168. Basic information on how to customize your journal using either style system can be found at http://www.livejournal.com/support/faqbrowse.bml?faqid=7.
Since FAQ 173 has been retired and merged into FAQ 168 (smackdown post, proposal post), this language should be updated to refer only to FAQ 168.