Latest patch for RHEL3 2.4.21-27.0.3ELSmp

Hi,

I have upgraded my kernel to 2.4.21-27.0.3ELSmp and I was running
tux-3.2.19-2 as per "rpm -qa | grep tux"
I wish to upgrade tux to use the gzip facilities. I have downloaded
tux-3.2.21.tar.gz.
1. Is this the correct latest patch for the kernel I have
2. What do I need to upgrade Tux (in terms of compilation and
configuration steps)

Hope I am at the right forum and looking forward to some guidance.

Thanks