(If you understand french, you can also have a look at this
webpage.)
To go to the IECN from the train station,
the simplest thing to do is to take the T1 tramway at the "Nancy Gare" stop (there is a priori no difficulty to
find it from the train station;
but if you don't find it, don't waste your time and ask to some people around you!) in direction to "Vandoeuvre CHU Brabois".
Be careful! You must buy your ticket (in the gray vending machine) before getting on.
Then, you just have to get off at the "Callot" stop and to walk approximatively 500 meters.
First follow the "Lycée Jacques Callot" direction, and then the red line drawn in this campus map.
When you see this magnificent building

it is almost won!
Indeed, you just have to go inside, and to reach the first floor. My office number is 103.
In case, don't hesitate to call me at +33 6 63 00 71 50 (mobile phone) or at +33 3 83 68 45 03 (office).