Help with relationship class

I have a feature class (fishnet) that I want to relate to another table using a relationship class. I want each cell of my fishnet to be linked to the relationship class so that every time the cell is updated, the relationship table will be added to (essentially creating an archive of all the edits that ever occur). I believe I want to set up a one-to-many relationship class with forwarding enabled from the origin (fishnet) to destination (table). I haven't had any luck with this though (no fields are ever updated in my table). Anyone done this before and can give me a pointer?

Thanks,
David