I know that SharePoint does not support sub-tasks out-of-the-box, meaning I can't add a task and then create sub-tasks that are automatically related to that task that roll-up appropriately for reports , calculations, deletions etc. Our requirement is not necessarily to do this across sites at this time, task and subtasks are within the same site and could be the same or different lists.
I have seen commercial web parts that can be purchased to do this, but I can't seem to find any instructions or examples on how to develop my own.
Does anyone have any suggestions? Maybe a better way? Maybe use a DB and the BDC instead to accomplish this?
Any suggestions would be welcome. We have the enterprise version of MOSS.