Hi,
To remove RPM:
It's because you add .noarch.rpm at the end.
If you want to remove a RPM you have to give it's name. You can find it with the command rpm -qa
In your case :
rpm -qa | grep redoma
give the answer
smeserver-redomaEN-0-8.1
then you can type :
rpm -e smeserver-redomaEN-0-8.1
To upgrade RPM:
The command to upgrade this rpm is :
rpm -Uvh --force smeserver-redomaEN-0-8.1
but, as the name is not exactly the same between the french and english version, I think you can remove the french version with the remove command and after that, you can install the english version
Gla