JEM wrote:
Delete your current install, drop the tables in the current DB through phpMyAdmin.
Jem,
Thanks again for the reply. However, at risk of infuriating you (please be kind to the newbie)...
I don't know how to do what you are asking:
- Delete current install - Where? How? Are we talking about deleting V4 template or Joomla or both? Is this a press of a button(s) or deleting of files/folders? Incidentally, I'm still confused as to whether the RocketLauncher installs Joomla -- or not -- along with a RocketTheme template (my take on the website instructions is that it's a bit vague).
- drop the tables - when I go into PHPMyAdmin it's not obvious to me as to how to accomplish this and I don't want to muck things up. (This is my first foray into all of this; I've been an old school static html hack until now -- ok, still a hack, but...)
Can you get more specific (really specific)? If not, I can likely find what I need in Joomla and MyPhpAdmin documentation. I'm a fairly quick study so if I can just get through this once... (...teach me to fish...) 
Any additional tips will be much appreciated. Thanks again!!