Finally got it working! For some reason, it was adding CR Basic DLLs to my app, even though I had upgraded to CR 2008. But now it's all good and I can look into your questions.

Good news and bad news. I figured it out, but there is a bug on the property you need. Display String always returns null. The other condtional formulas work (but it is only a limited set), but not Display String. I'm going to email my contact at BOBJ to see if they are aware of this for a future service pack. Here is the code snippet:

ReportObjects myReportObjects;
myReportObjects = rcd.ReportDefController.ReportObjectController.GetAllReportObjects();
ISCRReportObject myObj;
myObj =  (ISCRReportObject)myReportObjects[0]; //use whichever object you want
string myFormula;
myFormula = myObj.Format.ConditionFormulas[CrObjectFormatConditionFormulaTypeEnum.crObjectFormatConditionFormulaTypeDisplayString].Text;

Edited by BrianBischof - 27 Jun 2008 at 12:32am

*ping* :)

Any news on the boolean grouping question, or the other questions?

Thanks again!