The thread manager system extension is available from apple computer:

ftp://ftp.info.apple.com/Apple_Support_Area/Apple_Software_Updates/US/Macintosh/System/Other_System/Thread_Manager_2.0.1.sea.bin



Or goto Apple Software Updates and do a search:

  http://swupdates.info.apple.com

 -jeff (mac-gs@aladdin.com)