I hope the documents I sent you are helpful. What happens if you try this WKT? Make is a .prj file and browse to it to set the data frame or the data's coordinate system. Make sure it's a single line in the text file.
PROJCS["NAD_1983_UTM_Zone_9N",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",23818.899],PARAMETER["False_Northing",-5922676.481],PARAMETER["Central_Meridian",-127.81305555556],PARAMETER["Scale_Factor",1.000125],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]
Melita