Righto! Would love to give it a try - it'll probably be the first hack that I've ever done, so my fingers are a bit shaky given that this isn't exactly a routine operation...

1. I've alreade removed showthreaded.php from the site. Which files contain references to this - is it only showthreaded.php? And which command/s must I remove to carry out this procedure?
Lastly, what must I remove from editdisplay.php to finish off the job, and what MySQL query must I run to set everyone's default to 'Threaded mode'?
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2. Is it only postlist.php that needs to be altered? What must I slice out?
And as above, what must I remove from editdisplay.php and which MySQL query should I use to set the default to 'Collapsed Topics'.