[Yum] Fedora4 vs RHEL 3.0as yum's versions

[Daniel Romeo]

Seth,
I need to implement a local repository for fedora core 4 in a yum server 
machine (RHEL 3.0as) with yum-2.0.7-1.noarch.rpm installed. The 
questions are: can I to continue using this version in fedora client 
safely?.
The Duke webpage recommends yum 2.4.x.src.rpm,  do you  know any 
incompatibility to use both? (lamentably there isn't a noarch for 
download in this version). 
Regards.