Well here's the results...
Using MAIO 3.07 (which has AKAIO 1.8.8) I've found/downloaded & tried the following.....
DS #5719: DreamWorks Super Star Kartz (USA) - Passed: Started up & I've gone as far as playing the first track without any problem
DS #5721: One Piece: Gigant Battle 2 - Shinsekai (Japan) - Failed: Got 2 white screens...
(But this COULD be because it's a Japanese ROM being tried on a European DSLite, I've not tried playing foreign ROM's before, so I don't know if this is normal)
No it's not that it's a foreign game. It's AP protection. It wont start on my USA DSi either This is great news never-the-less. Thank you homeboy