Hi.  I'm stuck.   I'm using Sonar X1 Studio, and Win7.
In a midi track, I right click FX, select midi plugins, cakewalk effects, and all the velocity, transpose, etc stuff is there, but there's no session drummer there.   Any help is much appreciated.  Thanks,  Rick

Session Drummer is only packaged in Producer version.

Take a look here (click on Instruments / view more ):
http://www.cakewalk.com/products/SONAR/X2-Studio/

Thank you very much Tom.  Guess I bought the wrong one then.  I was looking at a chart that compared the 3 versions and it had an 'x' for session drummer in producer and studio, but not the basic.  ..... Bad chart, and I didn't do my homework.  

You still have Studio Instruments - Drums. I do use this and it sounded great too.

About the only thing lacking is there is no add on sound library. But it should have enough built in kits to get started.

No worries either - when you want to have more drums there are many add on drums package you can use (BFD2, Toontracks, etc..). 

Or wait for some offers to upgrade to Sonar Producer edition.