Loops within Loops: Coding an ASP-based Bulletin Board
This article provides an easy way to list nested forums. It does have some drawbacks, though. For starters, there is an upper-bound on the number of nested replies a message can have. In this example, the number is 12, although this is configurable. Furthermore, this approach is not the most efficient approach, and could be streamlined using stored procedures and fewer ADO objects within the code.