To the installation:

This is the description for the system installed if the rank system had 
not ever installed. If the old system were installed, deinstalled it, 
than delete this and controls in your PHPmyAdmin whether the tables rank system 
was really deleted.If  not deletes the table by hand.


0.
Load the the files in the infusions file. 


1.
Open maincore.php and write completely in the end approx. the line 610:

include INFUSIONS."wob_rank_system/func/func.php";


2.
Install the infusion.


3.
CHMOD the file "images" to 777





Example to insert the rank system: 

echo getRank($userdata['user_id']);

The function only need the user_id to show the rank  ( getRank(USER_ID) )