MyBB Community Forums

For example this link:
http://myforum.fbi.gov/forum/showthread.php?tid=14

How can I turn the threads into this:

http://myforum.fbi.gov/forum/how-to-chan...in-advance

google seo plugin

That's nothing to do with prefixes but I guess you mean this: http://mods.mybb.com/view/google-seo

I have a question, does it work for MyBB 1.6.x?

yes...

Okay, thanks for your help.

Btw, ~Rs, do you mind helping me to install it? There are too many files, I don't know which ones to upload.

And have you read the documentation that comes with the plugin, which clearly explains everything you have to do??

Yes, but it says something about 404 errors, is it a must to do? Edit the htaccess file?

Yes, if you don't make the .htaccess edits, it's impossible for the URLs to work.