If you've imported the ROMs and they are now showing on the ROM list they should work. I've got just about every ADF working, you might need to select a specific machine like A1200 and it should use the A1200 ROM. I used the ROMs from the AmigaOS 3.2 disc, I also added a 1.3 ROM for the Amiga 500.
I've not bothered with stuff in other formats.
