Now...not only does SPLAT not see Smack Attack on scanning.  It won't even complete a total new (yea, I know, yet massive) vst scan.  It keeps getting hung on different plugins.  Since I had just updated SPLAT before scanning for SA I want to try rolling back to the previous version of SPLAT.  How does one do this??
 

Go into the Command Center and right click on SONAR. You'll see "Rollback" in the menu which appears. This menu will give you a list of rollback options, the most recent at the bottom. 

Thanks sharke, ol pal.

You are v.welcome!