Code/hack request

I'm not sure if its PHP/ajax or whatever, my coding knowledge is pretty much zero so coding it myself also lead to nothing

What I'm looking for is a Vbulletin hack or code for my celebrity image forum.
Whenever you hover over a thread it will show the last few images posted in that thread.
We have people uploading their picture on many imagehosts so I guess the image preview should look for the .jpg/jpeg/gif extension.

I know it exists because another celeb forum does use that hack but after many months of searching I got to a dead end

Thanks in advance for any help

Here is a preview image of what I mean:

http://img248.imagevenue.com/img.php?image=60336_imagepreview_122_144lo.JPG

Code (markup):

 

It can be coded in PHP , search in hotscripts.com once to see whether something is readily available.

 

Thank you for your reply I realized that I shouldn't look for a hack/mod but for a script so I've now found a script that I think should work

But there are 2 problems; each thread has a different link and images, so how can I specify a thread number?
On the forum that I mentioned earlier I found this in the pagesource

<a href="showthread.php?t=223805"  onMouseover="doShow('223805') 

Code (markup):

In the code that I've found I get this:

<img class="border_b" src="bla.jpg" width="100" height="87" border="0" onMouseOver=show_200("bla.jpg","71895",200,150) onMouseOut=hide_div()

Code (markup):