Seeing as you are finding Sonar so foreign compared to Guitar Tracks I'd recommend that you do the tutorials that are available. When Sonar is open press F1 and the help file should open at the tutorials page if not the contents list will point to the tutorials.
Also in Sonar you can point to an icon and there will be a tool tip indicating its use and if you open a particular window, pressing F1 will open the help file at the help for that window or operation.
We're also users so don't be so tough on us. We're usually glad to help.