yum-2.0.7-6.SL.noarch.rpm
This yum has a different installation algorithum than the yum
that was used as the final release.  This version of yum 
basically allows you to have "sloppy kernels".
This means that if you have a kernel, with corresponding
kernel-module rpm's.  You could upgrade that kernel even 
though you didn't have the corresponding kernel-module for
that new kernel.
The drawback to "sloppy kernels" is that you can accidentally 
not have a critical functionality in your new kernel.  An 
example of that would be if you have xfs as your main file
system, and upgrade your kernel, without the xfs kernel-module.
If you then reboot into that kernel, all would be lost.