Theme test drive

Does anyone use this? I installed this plugin along with a new theme (tpsunrise) and was excited to work on my new theme in the background without disturbing the current theme. I made a child theme first and then proceeded to use theme test drive to modify the child theme. . .so I thought.

Every time I previewed the parent theme, it carried over the changes I thought I had only made to the child. I finally got so frustrated that I disabled theme test drive, deleted the parent theme and the child theme and then proceeded to start all over. I downloaded the theme from WordPress again, saved it and uploaded to my themes again. This time with no child in sight and theme test drive disabled, when I went to preview tpsunrise what did I find?! A version with my changes yet again!

I just don’t understand. I thought certainly this approach would bring me back to the original template. Now I am just stumped as this made perfect sense to me. Can anyone help with this please?

I am beginning to think this is just not for me and that I should go back to writing my ebook(s). . .I just want to get to the content but I cannot seem to get over the hurdle to just modify my template to how I would like things to look. I still would like to use wordpress so i must get through this. Any help would be greatly appreciated.

Thanks.