Check this out..
By default, the product allows you to make certain fields searchable. If you make them "searchable" this means that members can filter through those Extra Fields right within the forum itself via "Display Options". Kind of like when you're looking for the car and have the ability to change the model of the car, right on the page you're searching on.
Check out
this forum and you'll see our custom display options area on the sidebar

Will give you an idea of how things work.
Now, if you notice.. When you go to filter, the url on your browser changes as follows. Say I'm looking for the "Administrative/Maintenence" category in that forum, you'll see that the url automatically adds this at the end.
HTML Code:
field2=Administrative/Maintenance
So because we have this function, that means that we can build urls that automatically filter things, by adding fieldx=whatever.
What do I mean? Ok, lets say you want to do this for your "Author" field. Essentially, what I'd do is as follows.
Create the field, make it searchable, and set it to a display of 0.
I'd then manually insert the following somewhere in the postbit template:
HTML Code:
<a href="$vboptions[bburl]/forumdisplay.php?f=FORUMID&fieldX=$thread[fieldx]">$thread[fieldx]</a>
Instances of fieldx, obviously need to be edited to replace x with the actual field id. You'll see that what this link will do is bring your members over to the specified forum, and then automatically filter that forum based on the field being the same as the one they clicked
With manual insertion, the possibilities to what you can do with your fields is truly endless. The idea for both this product and the Advanced Forum product was to make it that much easier to build custom databases/sections for your individual forums
