Lisa
I'm one of the design team members for TJ. You'd probably get your questions answered better if you posted them on the TJ Yahoo Group (the yahoo group is for paid subscribers of the Technique Junkies Newsletter of
www.patstamps.com )
As for the Fixative Spray - you are looking for Krylon Fixative Spray - you can find it at Michaels or your local hardward store. I prefer to use Matte.
The pastels in the Glowing Oil Pastels are these you should also be able to find these in the FINE ARTS section of Michaels
this might help
http://www.dickblick.com/zz200/13/
These same 2 questions were just asked this week on the TJ yahoo group.
Feel free to PM me with any questions.
Lisa Somerville