Pinkoola: Slideshow
I haven't developed a custom module, because it's really easy to make a slideshow. Basically what you need to do is, to go to your module manager in joomla administration, click the new button and choose custom html option.
Give your slideshow a name, but disable showing it. Select "slideshow" as it's position. Now just add how many images you want (they should be all in the same size) via code bellow.
Code
<li class="s3sliderImage">
<img src="/Path to image" border="0" alt="Title of the image" />
<span>Image Description</span>
</li>
<div class="clear s3sliderImage"></div>
If you want to add more images, just repeat this:
<li class="s3sliderImage">
<img src="/Path to image" border="0" alt="Title of the image" />
<span>Image Description</span>
</li>

