get Audit Info

I tried to use the BSFN B9800100 - GetAuditInformation however I am not able to map it. Here's what I find:

SL UserId -> szUserName                                             xxUSER

SL DateToday->jdDate                                                  xxUPMJ

<NOT Assigned>   mnTime                                           xxUPMT 

<NOT Assigned>   szWorkstation_UserId

<NOT Assigned>   szMachineKey

I am not cetain what should I assign to mnTime,szWorkstation_UserId,szMachineKey on the BSFN. Additionally, I would also like to assign xxPID,JOBN to the relevant table where xx is the prefix.