The only place I see Dimension Pro is in the Cakewalk Sound Center which also seem to include some Rapture sounds.   
Is this just a sampling of each program?  How do I access the full version?  I see a $19 option to purchase it but I also see it listed as coming with X2.. 
 
Dimension Pro is listed in my account with no option to download it.  I'm not sure what that means.

DimPro is bundled with X2 Producer but uses a separate installer. The download links for the DimPro installer are on the the dowloand page for X2 Producer in your store account. The files are 04_Dimension_Pro_1_5_Setup.exe and 04_Dimension_Pro_1.5_Expansion_Packs.zip. The DimPro listing in your account are the registration credentials.

Got it.  Thanks!