Mr_Ed what a way to start a journey! I hope you are not too delayed as a result.
If you look at
http://www.qatarairways.com/Privileg...ge?mid=4&sid=1 you may find the last paragraph useful.
"Important Information:
For tickets upgraded to Business or First Class under certain promotional offering or using Qmiles/Qcredits, Members will earn Qmiles based on original booking class purchased. Please check your ticket or contact any Qatar Airways office for details."
in particular "Members will earn Qmiles based on original booking class purchased."
Taken slightly out of context but it establishes the principle of original booking class.