Ok guys, thanks for the help again.
I DID find out the CI_VERSION, but it was not in system/core, but rather in system/codeigniter/CodeIgniter.php.
And the version running is 1.7.2. If CI's version 2 reached EOL in 2015, we're talking about a bit dated system here.
So... no application/core folder, no MX folders. Perhaps this feature wasn't implemented in early 2010's?
This is starting to seem a bit gloomy.
Hmm. I'm going to try and find any differences between my local configuration and the on in production to find out why the routing or url rewriting isn't working. No clue where to start though, any help is still very appreciated..
Cheers,
Janne
