converting Crystal Reports to SSRS

I came across a website that claimed "There are approximately 116 functions in Crystal Reports that do not have a direct equivalent in VB.NET or Reporting Services (SSRS)." Does anyone know what these functions are?I know this is not a direct answer to your question, but we looked into a way to convert Crystal Reports to SQL Reports, but were unable to find a viable solution. There is an application called RPT2RDL that claims to convert some files, but it does not handle a good many functions even though some are supported by SQL Reporting Services. This has left us manually recreating the reports which takes a great deal of time.