what are the most important features you need from the forum script here?
I see now that the search is absolutely necessary. I sometimes have trouble myself finding previous posts. Hopefully I will be able to add search over the next few days.
I was also thinking of RSS feed. Does anyone use them, is it really useful?
I don't have capacity to build full-featured forum with user registration and other bells & whistles and frankly I don't really see the need for it. My main requirement was to have forum fully integrated into the site and I was not able to find ready-made one where I can easily understand and modify the code. I ended up building the new one :-)