[Mediawiki-l] Categories

[Sandy Rozhon]

I've asked this question before, but didn't receive any solution.

Why can't I add pages to Categories?  I am using version 1.6.9

As an example, just to make sure I'm adding them correctly, at the 
bottom of the page, I am putting the following:

[[Category:People|Fish, Ebenezer]]

If I go to the Special:Categories, it shows:
       3. People (6 links) 

If I then click on People, it takes me to Category:People but nothing 
shows up other than the simple text I included explaining what the 
category is for.  None of the People category links are shown.  Only 
my overview.  Is the category page normally automatically populated 
with everything linking there, or am I supposed to put some sort of 
template code on it?

The most likely cause of this problem is that something got broken 
when I upgraded from an earlier version because the categories I had 
in there before are still present, but if I hadn't already created 
the category page, I no longer can because I receive the following 
error: 

Fatal error: Call to undefined function: openshowcategory() in 
/home/trees/wiki/includes/EditPage.php on line 1126

Since I can edit one that existed prior to the upgrade to 1.6.9, it 
seems to me that something in the above named function must create 
the category pages and now that it's "undefined", that procedure is 
not being executed.

Can anyone help me here?  I can't upgrade any further because the 
webserver I'm on isn't using PHP 5.

Sandy