Sorry, I only fly VFR, all done with the Mk.1 eyeball and a map. I know Sky flies IMC but he only uses (in case you didn't know) the PDMG 737.
There are lots of fora out there that may be able to help more than we can.
flightsim.com
flightsimworld.com
flyawaysimulation.com
sim-outhouse.com
visualflight.net
mutleyshanger.com
Hope it helps