Currently if you schedule a report to be delivered daily via email using a rolling date range. The report attachement that you get in the daily email shows the correct dates, but if you click on the "Link to Report" to view the report within SiteCatalyst, it takes you to the date range that was used when the report was originally set up. Since you have specifically set the date ranges to "rolling" and you have scheduled the report to deliver daily, the expectation is that the link would go to the current date range and not the original.