Sorry, pattview and ACtoolkit are for Animal Crossing on the Wii, not the DS.
You can try AnimalMap, but I don't think it'll work either because Datel slightly changed the new save file.
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the map editor and pattview I used said they were for WW, the pattview has a different Icon then the one for CF. The directions said it needed the .duc file which is the ds version. Why did Datel go and do that? Darn. I wonder if I can find the DUO out there somewhere and use it on my old DS
Edit: oh and it was AnimalMap
Is there any other way to get a save file from a DSi that will work with the WW pattern tool or the AnimalMap?
ShunyWeb is the converter. And yes, the new ARDSi outputs different .duc files than the original :D