Not sure if it helps, as I not familiar with skinning, but I think you can get different types of the skin ids via the following perl script (assuming you running english client).
If you take previous pack, and all if its element ids, you can use process of elimination to figure out what has changed.
Code:
my $sta = 176960420;
my $end = 177202014;
my $len = $end - $sta;
open IN, "<client_general.dat";
seek(IN, $sta, 0);
my $buffer;
if (my $rv = read(IN,$buffer, $len)) {
my @recs = split(/..\x00\x10./, $buffer);
foreach my $rec (@recs) {
$rec =~ s/\W//gis;
print "$rec\n";
}
}
close IN;