The latest verion of sudo is 1.7.4p3
The "authoritative" sudo ftp site is ftp://ftp.sudo.ws/pub/sudo/
and there is a web page at http://www.sudo.ws/sudo/

File:			Description:
=====================	===========================================
sudo.tar.gz		Link to the current version of sudo
sudo-1.7.2.tar.gz	Sudo version 1.7.2
sudo-1.7.2p1.tar.gz	Sudo version 1.7.2p1
sudo-1.7.2p1.patch.gz	Patch to update sudo 1.7.2 to 1.7.2p1
sudo-1.7.2p2.tar.gz	Sudo version 1.7.2p2
sudo-1.7.2p2.patch.gz	Patch to update sudo 1.7.2p1 to 1.7.2p2
sudo-1.7.2p3.tar.gz	Sudo version 1.7.2p3
sudo-1.7.2p3.patch.gz	Patch to update sudo 1.7.2p2 to 1.7.2p3
sudo-1.7.2p4.tar.gz	Sudo version 1.7.2p4
sudo-1.7.2p4.patch.gz	Patch to update sudo 1.7.2p3 to 1.7.2p4
sudo-1.7.2p5.tar.gz	Sudo version 1.7.2p5
sudo-1.7.2p5.patch.gz	Patch to update sudo 1.7.2p4 to 1.7.2p5
sudo-1.7.2p6.tar.gz	Sudo version 1.7.2p6
sudo-1.7.2p6.patch.gz	Patch to update sudo 1.7.2p5 to 1.7.2p6
sudo-1.7.2p7.tar.gz	Sudo version 1.7.2p7
sudo-1.7.2p7.patch.gz	Patch to update sudo 1.7.2p6 to 1.7.2p7
sudo-1.7.3.tar.gz	Sudo version 1.7.3
sudo-1.7.4.tar.gz	Sudo version 1.7.4
sudo-1.7.4p1.tar.gz	Sudo version 1.7.4p1
sudo-1.7.4p1.patch.gz	Patch to update sudo 1.7.4 to 1.7.4p1
sudo-1.7.4p2.tar.gz	Sudo version 1.7.4p2
sudo-1.7.4p2.patch.gz	Patch to update sudo 1.7.4p1 to 1.7.4p2
sudo-1.7.4p3.tar.gz	Sudo version 1.7.4p3
sudo-1.7.4p3.patch.gz	Patch to update sudo 1.7.4p2 to 1.7.4p3