Lets be sure your issue is related to the systimestamp columns.

1- Please try to load your data taking out your systimestamp values, just load nothing (nulls) in there.

2- If it works then we know for sure the problem is systimestamp related and consequently I would say formatting related. In this case please start by doing a "select systimestamp from dual;" and check what's the expected systimestamp format.

In my case I can see "03/10/2008 2:34:15.881 PM"