btw: failed to load the fiducials.

qSlicerIO needs to be overloaded to support the acsv file type.
Please look at what is done in the Volumes module (qSlicerVolumesIO and qSlicerVolumesIOOptionsWidget)

qSlicerIO was updated (trying to overload it for the Reporting module led to compilation errors in trying ot return a qSlicerIO::IOFileType from fileType).
There are still some issues with the option widget not updating the parameters when the widget is opened/closed (defaults is used even when another type is selected).

Can I help in some way ?

Julien: yes please! I haven't been able to debug this error case:
Add Data
Select a fiducial file, a ruler file, an ROI file (F.acsv, M.acsv, R.acsv).
Open the options widgets in the Add Data panel, see that the correct annotation types are selected.
Load: all are loaded as if the file type was still fiducial.

r20794 fixes the "options widget".
The loading for Ruler and ROI breaks somewhere else though.

Thanks Julien!
Final fixes for ruler and ROI pushed back post RSNA, annotations will be loaded via .mrml files (may get re-targeted if Reporting module/AIM file load is failing)

svn 21477 fixes loading of ruler files, add the ruler to the scene and call initialize first
http://viewvc.slicer.org/viewvc.cgi/Slicer4?view=revision&revision=21477

Looks like it's fixed in the current nightly build.