Ok I did some checking and there is a program you can download from rpg maker's site that should allow you to play the game (and any other RPG made with RPG Maker VX Ace). There are instructions but it's pretty standard download/extract/install. Here is the link: http://www.rpgmakerweb.com/download/additional/run-time-packages
Scroll down a tad and click the big blue button that says "Download Now." Hope this fixes it for you!