Translated portal content cannot be transported

Dear Experts,

I've tried added some translation for the portal content and follow the step suggested in the following link to export the package.

http://scn.sap.com/docs/DOC-24995#jive_content_id_PCD_Object_Translations

The only difference is that in our environment, we don't have CTS set up for the portal, we are exporting the package to files system and then import them to the target environment.However, after importing to the UAT environment, the translated text cannot be displayed.

Any idea what I've done wrong or any step that I've missed.

Thanks,

Francis