Thank you for your response.
Actually yes, I had checked rpmfind.net and was having trouble understanding the mapping of the site. I didn't know how to search for what I was looking for. So once I became frustrated with it I posted here.
After reading your suggestion, however, I decided to try again. And this time I was more successful. (Maybe stopping to have some lunch helped...)
So I found a directory structure for mandrake files that are accessible for http download. And specifically I found my file on the following site:
I have "gcc-3.2.2-3mdk.i586.rpm" and I am encouraged that there is no "src" in the name. So this should work.