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Setting up per-forum search on Drupal 6
Submitted by Albert on Mon, 05/28/2012 - 08:50
Install advanced_forum 6.x-2.x and nodecomment 6.x-2.x.
Enable advanced_comment, nodecomment and core search module. (nodecomment might take a few minutes to be enabled, depending on the number of nodes on your site. You might also have an out of memory error while enabling the module, just ignore it).
Run cron on your site
If you have a non-English site, go to admin/build/translate/search, and search for the term "Search", and translate "Search topic" and "Search forum" to your language. Do the same for the string "You may use the word and to require"
Now, when you visit a forum or topic, you will see a Search box.