Showing Flash attachments inline

[talkgraphics]

Hi,
We have upgraded our forum to 4.0.6 today, and flash attachments are no longer showing inline in forum posts. In version 3.x we achieved this (and we know of the security implications btw) by 'hacking' the attachment.php file, and simply including SWF in the array of attachment types that get shown inline, as shown below.

Does anybody know how to achieve this in version 4.x?
Thanks,
Dan

if (in_array($extension, array('jpg', 'jpe', 'jpeg', 'gif', 'png', 'swf')))
{
header("Content-disposition: inline; $filename");
header('Content-transfer-encoding: binary');
}
else
{
// force files to be downloaded because of a possible XSS issue in IE
header("Content-disposition: attachment; $filename");
}

--------------- Added [DATE]1282206260[/DATE] at [TIME]1282206260[/TIME] ---------------

You'll have to excuse me, I'm having a bad day - in fact the exact same piece of code exists in VB4, and editing it the same way produces the same effect. Thanks.