I doubt it will make any difference, but when I looked at the 'EZ-Office' page source to find out what script you use for refreshing I found a little typo in the code.
At line 17, it says
The type is correct, but the language should be without the 'k'. I think most browsers will interpret the code just fine, but I thought I'd give you guys a heads up on it.
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If you want to get picky, there are a lot more errors than just that one but most are only a problem in very old browsers, the code is actually a lot better than some I've had to work with in the past (there's nothing worse than taking over a site built by someone who thinks he knows what he is doing). But then, this is where my OCD comes in to play.
The code tags are fixed now.
I know what you mean, I purchased the code from a friend of mine who had developed a PHP CMS for his website. I couldn't understand anything of his code, because it was extremely messy and he hadn't provided it with any comments so I ended up starting from scratch and building my own. Though my code probably also contains some errors, it works and is much more understandable (for me at least :D).