Can arc9.3 read arcpy scripts/toolboxes made on arc 10

Discussion created by mhouts on Sep 22, 2010
Latest reply on Jan 14, 2011 by jbarrette-esristaff
Some of our workstations have been upgraded to 10, while others are still at 9.3.  Im trying to share a model/toolbox I made using 10 with a user still on 9.3 (python 2.5).  I  saved the toolbox as a 9.3 toolbox, but it contained some python script that references arcpy.  Will a simple update to python 2.6 enable it to recognize the arcpy call, or is everything created in 10 stuck there.