Try the repository at http://theoryx5.uwinnipeg.ca/ppms.

ppm> rep describe 2
Describing Active Repository 2:
    Name: winnipeg
Location: http://theoryx5.uwinnipeg.ca/ppms
    Type: Webpage
ppm> describe
====================
Package 3:
    Name: GD
 Version: 2.19
  Author: Lincoln Stein (lstein@cshl.org)
   Title: GD
Abstract: Interface to Gd Graphics Library
Location: winnipeg
Available Platforms:
       1. MSWin32-x86-multi-thread-5.8
====================
[download]