This is the only free Joomla 1.7 compliant forum component up to now and it works, but, having had to adapt it to my website, I have to say it's a pain overriding it. I have had to rewrite thousands of lines of code/html in order to get rid of needless tables, inline style attributes, violations of the MVC pattern (sometimes there are "include" tags that point to component "core files" which do nothing else but generate a simple static HTML list).
I have to give it the fact it DOES WORK, although It's taken me days to make it into what I wanted it to be.
There's room for a lot of improvement.
Thank you for sharing, anyway.