I would guess that:
Code:
QuarantineAndScrub_official_library_to_extract_rename_to_zip.jar
is actually:
Code:
QuarantineAndScrub_Official_Library_To_Extract_v496b_with_qs_service_pack_incl__rename_to_zip.jar
But the instructions haven't been updated. (Never mind that the filename need not have changed???)
@PeterT -- I suggested to the author before, that those could be contained and self-extracted by the plugin (or else downloaded *by* the plugin) which would make it less awkward.
Apparently barriers to entry are desirable for weeding out the non-technical and uncommitted.