Hi,
you will need Custom link plugin, then you can create a link to your form posts like this:
a) create field named 'id_field'
that will contain id value necessary to create correct link. Use
storage like Standard - Free - name_of_your_id_database_column and
select correct table in the 4th dropdown, matching table from your free
query. This
name_of_your_id_database_column (replaced by your actual id column) also needs to be present in the Free search query. Put this field to the Hidden position.
b)
Put Custom link on the desired field, e.g. Title and click + , your
link should look like this:
com_something&view=forum&id=$cck->getValue('id_field').
Ofcourse you need to replace link with actual link needed to display a
forum post