Changes in time events

Hi Experts,

I am new to Positive time management. Can any one explain me the IT2011 Behavior

1) How to change the time events records and where it will get stored.

2) As per client some times Clock in and clock out details need to change based on requirement .How it will get update and where updated events get save

2) How to export the .txt file to sap.

Regards

Mohan