If you want to set debug for How to debug AX 2009 SSRS reports with Microsoft Visual Studio 2008 then this link is very helpful to know debugging SSRS reports
http://kdynamics.blogspot.in/2013/04/debugging-microsoft-dynamics-ax-2009.html
You need to use Visual Studio 2008 integrated debugger and reporting tools,extensions,services, vs 2008 should be installed on your pc with ax client.
http://kdynamics.blogspot.in/2013/04/debugging-microsoft-dynamics-ax-2009.html
You need to use Visual Studio 2008 integrated debugger and reporting tools,extensions,services, vs 2008 should be installed on your pc with ax client.