Is there a free way in C5 to have a page with some thumbnail pics, then when you click them they get bigger?

For example these are my thumbnails, I want the user to be able to click them to make them big enough to read.

http://dibbsolutions.com/medisoft/medisoft-16-screens/...

(I have full sized pics, not sure how to link to them)

It looks like when I upload them it puts them in a weird structure like:
/files/5312/6655/6202


Edit:
Oh wait, I just found this, I think this will work, trying it now...

http://www.concrete5.org/marketplace/addons/galleria_image_gallery/...

Edit #2:

OK, this is actually more like what I needed:

http://www.concrete5.org/marketplace/addons/zoom_image/...