If you can't reach LEO to get the files from the PVRG directory there, you can use my links below.
License text from the PVRG JPEG code:
Copyright (C) 1990, 1991, 1993 Andy C. Hung, all rights reserved.
PUBLIC DOMAIN LICENSE: Stanford University Portable Video Research Group. If you use this software, you agree to the following: This program package is purely experimental, and is licensed "as is". Permission is granted to use, modify, and distribute this program without charge for any purpose, provided this license/ disclaimer notice appears in the copies. No warranty or maintenance is given, either expressed or implied. In no event shall the author(s) be liable to you or a third party for any special, incidental, consequential, or other damages, arising out of the use or inability to use the program for any purpose (or the loss of data), even if we have been advised of such possibilities. Any public reference or advertisement of this source code should refer to it as the Portable Video Research Group (PVRG) code, and not by any author(s) (or Stanford University) name.
This web page and the etb patch to the PVRG JPEG code is by Eli the Bearded / Benjamin Elijah Griffin. Page copyright February 2005, reproduction of text, my code, and images is permitted under the Creative Commons Attribution-ShareAlike License.