I'm using the TFMod and WickvDundas and it works fine. Desastersoft have done an recent fix which you need to apply via the built in updater.
Pretty good customer service from them given its a community mod so can wholeheartedly recommend.
You are spot on, 1c got it wrong with BoB fuel octanes.
There is a way of extracting the Desastersoft campaign missions into the FMB and them reloading back in with the 100 oct versions. I think the method was noted by Pudenfuhrer on the English Desastersoft forum. Its a bit fiddly but definately do-able.
i haven't got round to it yet as just enjoying 'pootling' around the sky again in my Spit and reflying Heinkills great redux with the mod.
email@example.comMHZ, msip67a gd53, 8 GB RAM, msi660ti 2GB, 1920x1200, Win7-64, Saitek Evo FFB, TIR5.