Import/Export is only available for content within the same portal.

I never tried it, but you could [maybe] take a module export xml file (not page), copy it to the new portal, and import it.

Also, there are a couple of modules kicking around that will allow the sharing of content across portals. Maybe this would help?

thanks for all the suggestions - it worked fine - here are the actions performed -

1) 'Export' using Page functions on the parent portal (so this helps you create a template)

2) Host > Host settings > Other settings > File Upload Extension > (,template) - add this extension as this would be required on the next step (step 4)

3) Host > Portals > (select the  child portal)

4) Admin > File Manager > Upload (upload the template created on step 2)

5) Click the Page where you want to import the template on the child portal - Click 'Import' - select option "replace original" - Done!