a question about 'nested sets'

[eluser]WanWizard[/eluser]
There's an example in the zip file, and some comments on the wiki page.

If, based on the information provided, you're unable to create a table (there's even an example sql file included), I suggest you read up on nested sets first, so you understand what they do and how they work.

I don't use the code from the wiki, so I don't have an example for you.