[Pgsql-ayuda] Rpm upgrade de 7.3.4 a 7.4

Hola compañeros,

Tengo problema al intentar actualizar mi instalacion basada en RPMs de
7.3.4 a 7.4, uso RH 8. En primera instancia obtuve este error:

/home/josue/pg74: rpm -Uvh *.rpm
error: Failed dependencies:
perl(Pg) is needed by postgresql-contrib-7.4-0.2PGDG
libpq.so.2 is needed by (installed) perl-DBD-Pg-1.13-5
libpq.so.2 is needed by (installed) xemacs-21.4.8-16
libpq.so.2 is needed by (installed) libdbi-dbd-pgsql-0.6.5-2
libpq.so.2 is needed by (installed) mod_auth_pgsql-0.9.12-11
libpq.so.2 is needed by (installed) qt-PostgreSQL-3.0.5-17
libpq.so.2 is needed by (installed) php-pgsql-4.2.2-8.0.8
Suggested resolutions:
postgresql-perl-7.2.2-1.i386.rpm

Luego probe esta forma:
/home/josue/pg74: rpm -Uvh --nodeps *.rpm
Preparing... ###########################################
[100%]
file /usr/include/sqltypes.h from install of
postgresql-devel-7.4-0.2PGDG conflicts with file from package
unixODBC-devel-2.2.2-3

Alguna idea o recomendacion, podria desinstalar por completo 7.3.4 y
hacer una instalacion en limpio? si es si como lo desintalo? que
diferencia hay en instalar de los fuentes o de los RPMs?

Gracias anticipadas,

--
Josué Maldonado