[MarkFL]

Okay...javascript to the rescue...change the plugin to read:

PHP Code:

if (THIS_SCRIPT === 'showthread')
{
    $template_hook['headinclude_css'] .= '<style>.newreply {font-style: italic !important;}</style>';

    $template_hook['footer_javascript'] .= '<script>
var rwq = document.getElementsByClassName("newreply");

for (var n = 0; n < rwq.length; n++)
{
    rwq[n].title = "Stratis puts his custom tooltip here...";
}
</script>';
} 


Just replace "Stratis puts his custom tooltip here..." with what you want.