I believe you could copy my files into some other folder and then tell Outlook where the files are. If you open Stationery Picker (from Tools, Options, Mail Format), click on New, select "Use this file as a template:" and then Browse to the location of the file, that should work. I don't think stationery has to be in the standard folder that holds the usual stationery. You might want to change the name to Glacier2 or such.
Apparently, you don't have administrative rights on that computer. Is that right? If so, perhaps it won't let you browse to a different folder as described above.