So if you have a portal home page.

First add an ezblock and for visible settings choose "Portal Homepage"

Then under EzPortal settings make sure that the portal homepage is enabled

Just a thought.  On the preceding page to the visibility settings discussed above when setting up make sure you have set the membergroups as you want.  Unless they're ticked they won't see it.

You can even replicate an ezblock and effectively reposition it for different membergroups by moving them around the area they are diplayed on, left, center, right, no 10, 20, 30 etc.

Great for a 'guest' landing page being different to the members' one.