You'll need to post the actual error message you get, without that all anyone can do is guess at what might be wrong.
However, having said that, I'll have a go anyway
You say you run "make install". Is that the first command you run after extracting? It probably shouldn't be. The normal process for installing from source is to run
Then switch to the root account and run make install.
This is the normal way of doing things, but there should be documentation included with the source code that contains more information. Look for a file called README or INSTALL.
And finally, I'd have thought that Fedora 6 includes its own copy of Gutenprint. If it does, this is probably the best thing to install unless you specifically need a different version. Try "yum install gutenprint" as root.
Hope this helps.