RE: voices of passion
Open Tools -> Cakewalk Plugin Manager. Does VoP show up under VST Instruments and/or DirectX Instruments?
If not, re-scan plugins (click the "Scan VST Plug-ins" button) and see if it gets picked up.
If it's still not there, maybe you didn't install the VST version, or EW installed it somewhere other than \program files\cakewalk\vstplugins. Run a search on your C: drive and locate the DLL, which is probably named something like "Voices of Passion.dll".
(I don't have VoP, but I have Drumkit from Hell, another EastWest/PLAY engine product, and its DLL is named "Drumkit From Hell 2VST.dll" The DXi version is \program files\east west\drumkit from hell 2\dxi\drumkit from hell 2DXi.dll".)
If you locate the DXi version, you can register it manually. Open a DOS window and go to the directory where it's located, and type in "REGSVR32 filename.dll", substituting the actual file name for "filename.dll".
If you locate the VST version, and it's not in \program files\cakewalk\vstplugins, open the Plugin Manager in SONAR and add the folder to SONAR's VST scan path. Click on the "Options" button to get to the dialog.
All else is in doubt, so this is the truth I cling to. My Stuff