While learning myself to use the awesome add-on Interplanetary MFD by Jarmo Nikkanen, I tried to summarize, in a single document, must of the manuals and tutorials availables on this subject.
Once this job finished, I thought that, this recompilation, could be of use to others orbinauts.
Unzip into your Orbiter folder.
See the Orbiter Doc folder for manuals
Get MFD 5.5 by Jarmo Nikkanen http://koti.mbnet.fi/jarmonik/IMFD55.zip