crystal report designer vs crystal reports for .Net

Question

Hi Mahesh,

I have recently done a course on crystal reports XI designer.  It covered, in detail, how to create a report, adv.formaula,parameters,cross tab,sub reports etc. 

When i visited the CR related forums, like this one,  CR for.net is also being discussed.  I am not able to understand the CR.net concepts(like Crstal report viewer control etc..) 

My question is, Is there is any demand for crystal report XI designer as such,(in usa mkt) or do i need to know  CR for .net to increase my job opportunities.

Thanks,

Akil