Why would web brousers support png's if nobody is using them? Let's just
start small by using the minimal features of png on our webpages, so that
the web browsers will see that png is becoming popular and code in better
support.
I think you've downloaded the Win32 Version. In this version, the GIF
support is not included. You must download the GIF support separately
(due to Unisys Licence):
http://www.gimp.org/~tml/gimp/win32//downloads-20001023.html
(go to "No GIF's" and follow the instructions)
