Ralphem-
Eric, There is a basic problem with your logo, logo contest, and use of art in general -- a good number of us out here cannot see them!
Then you can't see the current Wikipedia logo either. It is and has always been in PNG format. GIF has patent problems (the European, Japanese and Canadian patent won't expire until June 2004) and may therefore even be incompatible with the FDL's requirement of format transparency. JPEG is a lossy format. PNG is perfect for logos and screenshots. All modern browsers support it; Mozilla, a powerful, modern browsers is available for most platforms, including MacOS 9 (only version 1.21, but that's less than a year old):
http://www.mozilla.org/releases/#1.2.1
Regards,
Erik