How to install the Pandora plugin for GIMP

1. Find the location of GIMP's directory for scripts (inside your home directory).
   
2. Save pandora-combine-0.9.3.scm to scripts directory.
3. Use Filters → Script-Fu → Refresh Scripts to refresh scripts.
4. Then read the How to use Pandora section from its page.

Sources

1. Pandora: a GIMP Plugin for Making Panoramas
2. Installing Script-Fus