Error during update from version 6.5.3 to version 7.03

I made a download of postgresql packages .rpm for suse64.

I stoped postgresql and started to install the packages.

The first package I tried to install was postgres-7.0.3-1suse64-i386.rpm

I received 1 error:
failed dependencies
pg_lib = 7.0.3 is needed by postgres-7.0.3-1suse64
libpq.so.2.1 is needed by postgres-7.0.3-1suse64

So, I tried to install package pg_lib-7.0.3-1suse64.i386.rpm
I received 7 erros:
file /usr/lib/libecpg.so from install of pg_lib-7.0.3-1suse64 conflicts with
file from package pg_ifa-6.5.3-46
file /usr/lib/libecpg.so.3 from install of pg_lib-7.0.3-1suse64 conflicts
with file from package pg_ifa-6.5.3-46
file /usr/lib/libpg++.so from install of pg_lib-7.0.3-1suse64 conflicts with
file from package pg_ifa-6.5.3-46
file /usr/lib/libpg++.so.3 from install of pg_lib-7.0.3-1suse64 conflicts
with file from package pg_ifa-6.5.3-46
file /usr/lib/libpg.so from install of pg_lib-7.0.3-1suse64 conflicts with
file from package pg_ifa-6.5.3-46
file /usr/lib/libpg.so.2 from install of pg_lib-7.0.3-1suse64 conflicts with
file from package pg_ifa-6.5.3-46
file /usr/lib/libpg.so.2.0 from install of pg_lib-7.0.3-1suse64 conflicts
with file from package pg_ifa-6.5.3-46

What is the right order to install these packages ?

José Luiz Pedroza
jlp(at)macknight(dot)com(dot)br