Got this working for real on a DSTTi Gold.
1) Download latest kernal 1.18a02sp1 from ndstti.cn website
http://www.ndstti.cn/
2)Then find the following version of the rom on BTJunkie
http://btjunkie.org/
[NDS]Mario_and_Luigi_Bowsers_Inside_Story[USA][ESPALNDS.com]
Works great on all the DSTTi...