how to edit cdf files

[alleb anehtam mendoza]

ive jusr download the brooklyn nets patch and bobcats 2013 patch
i want to put the large medium and small logos of the bobcat to the brooklyn nets patch
simply i want to put them in sama logo iff.
but when i done it the default bobcat logo still show..
pls help me pls..

[JaoSming]

you open the iff file with the same filename as the cdf with the mod tool. Even though you are opening the iff file, it edits the cdf file