How can I get View&Review rights for those companies that are flagged with a red cross in the e-Portfolio list column "free report"?

To get View & Review rights for such cases you simply click on the company name or D-U-N-S® in the search results list. This will route you to the "Comapny Details" page / tab "Oveerview". On the bottom right hand side you find a link "Order additional products".