Updating Files from 1.6 to 1.8

Since a lot of people have no idea what to do here is a simple tutorial.
I'll be doing it on Labrocca's Ficons plugin.

Locate the following file
public_html/inc/plugins/ficons.php

Note: ficons.php will be whatever file you need updated!

Edit the file and find compatibility and change it from 16* to 18*

On 1.6 (before)


On 1.8 (after)


Save the file and check in the ACP to make sure it's working.

Still not working?
In the case it doesn't edit all the files related to that plugin and add 18*.
Then it should work, I'll admit I had to do it with a few plugins.