just edit one of the files that come with it. for example one of the files is for dragon quest 3 is in the folder named 'cheat'
GOLD 999999 codes have to be like this
just put whatever code you need here. it seems that the only codes that are supported are the ones that start with 01. after you load the edited cheat file you could rename it and put more codes. another thing it seems like you can't load more the 10 codes.