I have to agree with kawika that everything I have read has been that your model number is for the Fascinate. Easy tip off would be; does your phone have a sim card? It is probably a CDMA phone with no sim slot. I suggest getting the files you need from the Fascinate forums as I am almost positive that the T959 files will not work on the T959d. Since you have modded a I-9000m you know that they are slightly different than the I-9000. Same thing goes with this circumstance.
Good luck and sorry that there wasn't more I could do but it is just a different phone.
@Citidin - Good to see you got yours solved. If you have questions, please ask (in the correct thread for your question a this one will probably be closed out).