If you've finally worked through all of your code-signing issues, you may see the error message below.
"This application requires your system to be updated to Microsoft.ReportViewer.Winforms Version 8.0.0.0."
The good news is that your certificates are working correctly.
This is easily fixable. In the VS.NET Publish-->Application Files list, change the Publish Status of Microsoft.ReportView.Common.dll and Microsoft.ReportView.Winforms.dll to "Include" in which case they'll get uploaded with the rest of your application. There's a thread on this on MSDN Forums, and I copied the three dlls recommended to the setup.exe directory--and it did work--but then it stopped working. Weird. So I had to go with the method described here. According to the Forums thread, it's a known bug and to be fixed in the RTM.