Go look at 61.159. I highly doubt they were using a FFS (full flight simulator), but you need to know if it was an FTD or an AATD. Just to break it down, the two main categories are FSTD and ATD. FSTD includes FFS and FTD. ATD is basically the non-specific generic stuff that doesn't meet the requirements for FSS/FTD, with subcategories of basic/advanced.

You can break it down from there, in 61.159 where it says FFS or FTD, you can count FFS or FTD. Where it says only FFS, you can only count FFS. If it doesn't say ATD, you can't count ATD.

Sometimes in the 141 courses, they could use both an FTD or AATD or sometimes just one of those. If you don't know what you used, then you got a problem. I would make sure to write out what level in the logbook for that purpose.