How to load date field using sql loader

Hi Gurus

I'm new to Oracle,I'm using Oracle8i Enterprise Edition Release 8.1.5.0.0 sun OS 2.6

I want to load a CSV file with two date field which is of the format mm/dd/yyyy into a table but SQLLDR gives the following errors,

ORA-01830: date format picture ends before converting entire input string ORA-01843: not a valid month

my text file format is like the following one,

40,October,10/2/2000,10/8/2000
41,October,10/9/2000,10/15/2000
42,October,10/16/2000,10/22/2000
43,October,10/23/2000,10/29/2000

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