Thanks for the reply. The provider of the host server is using Linux. As I do not have root access on the server, I don't see on the posted links how to install Alfresco on the shared host. Any ideas ?
Make sure the hosting provider supports Tomcat (and not just Apache Web Server). You'll need to download the Alfresco war file and manually install it I expect.
Does the provider not have a FAQ for installing Java applications? That usually removes a lot of the guess work.