Is it me or does the "Find In Thread" functionality fail with this turned on? Is there a quick fix to this?

I've merged boards and fulltext searching means that I won't have to rebuild search indexes on a 300,000+ post forum.

I'm merging again soon to go over the 500,000+ post mark, and I'll have the same request then too ;)

I'm on version 3.0.3, with debug mode on, but there's no "full text" option in the "version info and other untouchables" section (or anywhere else, for that matter). Did they move (or remove) the fulltext option in 3.0.3?

You're looking in the AdminCp right? Under vBulletin Options?

Yep. Admin CP --> vBulletin Options --> Version Info and Other Untouchables

The options in there are:
-vBulletin Version Number
-Save Attachments as Files
-File Attachment Path
-Save Avatars as Files
-Avatar File Path
-Avatar URL
-WYSIWYG Use DIV not P
-BB Code Parser Function

Then the [save] and [reset] buttons, and the debug box below that.

Am I just missed something dumb here? :)

I've looked everywhere (both in my AdminCP and online for answers) and can't find this option. Anyone have an idea where it might be?

As stated in the first post:

You'll need to shut your boards down for security reasons and
enter debug mode, or enable debug mode for yourself only.

So...

Add that in your config.php file.

Right. I did all of that. Then I go to the Admin CP, then to vBulletin Options, and the Version Info and Other Untouchables option is there. I go into that, but don't see an option for fulltext. All I see are:
-vBulletin Version Number
-Save Attachments as Files
-File Attachment Path
-Save Avatars as Files
-Avatar File Path
-Avatar URL
-WYSIWYG Use DIV not P
-BB Code Parser Function

I'm not sure why it's not there. Is it because I'm on 3.0.3 and not 3.0.2?

Its there in my 3.0.3... how did you upgrade?

Nothing out of the ordinary. I've been slowly upgrading since we started back on version 1.something. Do you know what file I might be out of date on and I'll make sure to reupload that correct one?

I've re-uploaded all of the files in the "admincp" directory, but I still don't have the fulltext option in there. Where is a setting like that stored?