United States v. Torres-Duenas, ___ F.3d ___, 2006 WL 2468308 (10th Cir. Aug. 28, 2006) (sentencing guidelines increasing offence level by 8 for aggravated felony, and 16 for crimes of violence apply regardless of the age of the conviction; 20 year old conviction properly used to increase level upon conviction of illegal re-entry).