leeroi,
I'm not entirely clear on what you want to do. Is it:
1) Keep a running log of when data is entered or modified?
2) Track the last time a record is edited?
3) Keep track of when a record is created?
4) Is this for the entire record, or a specific field?
Give us a few more details and we can probably get you pointed in the right direction. For now, I would take a look at the Dirty event and the Now() function. Also BeforeUpdate and AfterUpdate.
HTH,
Ken S.