Locating Where Your Current Theme is Stored

So, here’s the deal. I’m currently using Touchfolio theme. I tweeked the theme offline with MAMP before uploading to the live site. After each little tweak to the code, I uploaded it as a new zip files, ie Touchfolio 1, Touchfolio 2, Touchfolio 3 etc) I did this incase I messed something up while changing the code, that way I could revert back to the previous one. Now, I’m going live, and I’ve uploaded the entire wordpress folder onto my site. The problem now is that I don’t know which one the actual site is using. If I end up changing a file and reuploading it, it ends up being the wrong touchfolio folder. So, I was wondering if there was any way to locate where the actual theme files being used are stored on the server?