Ah, you did copy the "DSOrganize" folder over to the root of your card, right? DSO will make its own copy if one doesn't exist, but it's best to use the one provided in the download.

Also make sure to patch the \DSOrganize\Resources\exec_stub.bin file with DLDI.

I'm leaving for a week, so this is the last response I'll be able to give. Hope it helps.