Upgrating Developer's Environment in RedHat AS 2.1

[sysprog]

Hi,

I just got a RedHat Advanced Server 2.1, and I have to upgrade the "software
developer environment" (gcc, ld, glibc, glibc-common, bin-utils, etc') to
the latest version available.
While trying to do so - I found to know that there are some strict orders in
the installations (like I have to upgrade "glibc-common" before "glibc"),
but I went into a dead end after several tries.

So, my question is:
Does anyone know how should I upgrade the all environment?

Tnx,
Sysprog

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