ubb_lib_posting.cgi 6.6 Beta 1
$match++ if $_[0] =~ s/(<i>)(.+?)(</i>)/$2/isg;
$match++ if $_[0] =~ s/(<b>)(.+?)(</b>)/$2/isg;
$match++ if $_[0] =~ s/(<strong>)(.+?)(</strong>)/[qb]$2[/qb]/isg;
ubb_lib_posting.cgi 6.6 Beta 2
$match++ if $message =~ s/(<i>)(.+?)(</i>)/$2/isg;
$match++ if $message =~ s/(<b>)(.+?)(</b>)/$2/isg;
$match++ if $message =~ s/(<strong>)(.+?)(</strong>)/[qb]$2[/qb]/isg;

I knew I was right cause I tried to install this hack yesterday and had to change it.