FILE GRANTOR IRREVOCABLE TRUST SEPARATELY USING TRUST EIN

I filed Federal and PA State returns today using TT Deluxe Desktop. I am also Grantor for an Irrevocable Trust. The Trust is governed by the laws of NJ, where it was originally formed, but the assets are held according to the PA state of residence. Can I file separate Trust returns (Federal & PA) with the Trust EIN using TT Deluxe - or - do I have to amend my personal returns already filed?  In either case, I have to file a 1041, and the only way to get to the 1041 is buying TT Business, is that correct?

Thanks.