And to add to all that, VB 6 is dead along time ago. We no longer have any SDK that will work in VB 6 now. No COM components and VB 6 does not support .NET framework.
Only option is to upgrade to Visual Studio 2010, 2012 or 2013 and use CR for VS.
SAP Crystal Reports, developer version for Microsoft Visual Studio: Updates & Runtime Downloads
Sample apps are here:
NET RAS SDK Samples - Business Intelligence (BusinessObjects) - SCN Wiki
Don