Using C#, Crystal Reports

Im using crystal reports with c# and mysql, I have the data load into the report as such:

this.reportSnapshotsTableAdapter.FillByBusinessDayRangeOneLikeAverage(this.masterDataSet1.ReportSnapshots, TDayBDay, MDayBDay, HRF.DataType + "%");
HourlyReport1 = new HourlyReport();
HourlyReport1.SetDataSource(masterDataSet1);
crystalReportViewer1.ReportSource = HourlyReport1;

I have two questions. First, how do I set a title on the report and change it programmatically?

Second, how can i load in and compare two values from the same table? so it would be like

date1 date2

valuetype date1val date2val

any help is appreciated.