Not an expert here by any means but I can try and help. I am specifically using VF pages in Standard Customer Portal pages and know this to work rather well, particularly Detail pages. In order to display VF pages on Edit pages and List views you need to build the page with all the controllers you need and use the override on the page layout to call the VF page.
If you are wanting to completely recreate the Customer Portal using VF the best recommendation would be to optimize the use of Force.com sites.
What kind of thing are you looking for specifically?
Not an expert here by any means but I can try and help. I am specifically using VF pages in Standard Customer Portal pages and know this to work rather well, particularly Detail pages. In order to display VF pages on Edit pages and List views you need to build the page with all the controllers you need and use the override on the page layout to call the VF page.
If you are wanting to completely recreate the Customer Portal using VF the best recommendation would be to optimize the use of Force.com sites.
What kind of thing are you looking for specifically?
Matt