Mike
It looks great. Allow me a couple of comments
- The table structure you propose is in my view the optimal one. This way you have one folder that contains the links and everything in neat and tidy, without "interfering" with the threads files.
- For the images you definitely can use them to put something next to each category
- The templates are a MUST. The reason that I am saying this is because once you set them up (and your script uses them) with a single change in the appropriate stylesheet, you keep uniformity across your whole site. This was the reason that this big noise is generated for the templates and if I may add is one of the strongest points (but not the only one) of the threads.
- Lastly, I would like to see when I hover on top of a category, how many items it has in there. People would definitely find this useful, especially now at the beginning where you don't have that many links up.
I hope this helps and that you don't end up in the water...