Well i've come to the conclusion that the people getting it to work patching it to SD must be using an older firmware or patcher.
I officially just tried every single method of patching it to sd with latest soft and its still the same, two blank screens entering the 1st level.
Just for the record im using flashme v5 with SC SD patcher 2.52 and firmware 1.61.
The thing thats pissing me off right now is the fact that some people have it patched to SD and its running fine ?
I find it very strange why me and funkySkunk are getting different results to Tuxedo Kamen and deufeufeu.
Meh i'll prolly just buy the game anyway as it's kickass. Best platformer on ds so far
EDIT: weird i just done a test on my firmware to check everything was ok by holding L + R on boot, everything checked out fine so i loaded starfi back up and this time when entering the 1st level instead of pressing A i used the stylus to start the stage and now its working fine patched to save to SD with nothing ticked.
Hahaha it was unbelivable how much grief i had with this game, im so glad it's working properly now