A message indicates only 1 Personnel record processed when using the PIU
Windows Server 2003
Windows Server 2008
By default the CSVtoContinuumTransformation.xsl transform file sets the alias column to concatenate (TAC + SerialNumber)
The transform needs to be edited in a text editor (not IE) to change the concatenate line to be a unique alias.
If all was working at one point and the site was upgraded then the old PC may have the CSVtoContinuumTransformation.xsl that was working.
If this is a new install, select a number that will be unique for the records.
For more information on editing the PIU see the following article: