rpm needed

Dear all

i want to install oracle10g on Red Hat Advance Server 3
the following are the required rpm for oracle software

compat-db-4.0.14-5.1
compat-gcc-7.3-2.96.128
compat-libstdc++-7.3-2.96.128
compat-gcc-c++-7.3-2.96.128
compat-libstdc++-devel-7.3-2.96.128
setarch-1.3-1
openmotif-2.2.3

when i try to search for this rpm there are many sites , which site specific for Redhat Advance Server 3 rpm,
i got confused with number of distribution avalable on the web, provide me or explain how to decide which one is related to RHAS3

Regards