Thanks for the info man! Since nearly every game has the same acheivements and trophies on both platforms, this should be a safe bet for us. I just wonder why they havn't been updated on 360A yet?
I also wanted to point out that Doom 1 only had 8 trophies while Doom 2 only has 7. These were exactly the same trophies as the achievements in the XBLA versions of Doom 1 and 2, but why aren't all 12 included in the trophy list? Probably due to the fact that there isn't a set GS to each trophy.. hence the leveling system of the trophies themselves.
I think it's almost safe to assume now that they will be exact same cheeves as the XBLA versions. I only hope I get to acheive them again as I love Doom 1 and 2. Hopefully they won't just transfer over for those of us that own and have completed the XBLA versions, or atleast I hope so anyway.