I can shave 4 chars off of that:

$_="KNNKtIIIMRSSRQHHQplr.YY.sLFFL.CCWEDDEavg";s/[a-z]/uc$&x4/eg;
join"",(/./g)[map{$x=0;$x=$x*4|6&ord for/./g;$x/2}pop=~/.../g]
[download]

The 15 year old, freshman programmer,
Stephen Rawls