Welcome to the board. firerainmaker!!!
Resetting the adventures on the computer options screen will allow you to start over.
Typically with a game such as this an uninstall doesn't completely remove all the files that are created during play. These files need to be manually deleted. Doing a manual delete of the whole game directory takes care of the files that lingered which made your uninstall/reinstall uneffective.
Well that was pretty boring - but hope it was useful information!
Wyv