Upgrading from version 8 to version 10

I need guidance as to what must be changed in my project to use CR10 instead of the present CR8. Nothing I do seems to work. I tried redirecting the path to a folder of CR10 reports but it will not use CR10 to view the reports or to export the reports.
Thanks.

I believe you need to change project references to the Crystal Reports ActiveX Designer Runtime Library 10.