Spelling Challenges won't work with iTouchDS

I'm trying to run Spelling Challenges (https://www.romulation.org/NDS/1486_-_Spelling_Challenges_And_More_(U)(Micronauts).rar.html) on an iTouchDS but it fails every time with:Save data file Format error! on the bottom screen.I've removed the .sav file but that didn't work. I also put on a freshly downloaded .nds and that also had the same problem.Any ideas?Thanks.

Make sure you have the latest firmware for your Flashcart http://www.linfoxdomain.com/nintendo/ds/