It repeatedly saved my game, and I can find the data in my folders (though I can't access it,) so why does it make me start a new game every time I launch it? How do I fix it to where I can access my previous save?

Would you be able to send your save file to support@graemeborland.com ? If the save is in the correct location then there must be some other issue, it would help me to have a copy of the file in question.