If you want to try some recovery software to retrieve your pictures.
Recuva - http://www.recuva.com/
Type in JPG to group part of your pictures.
It's free but they do like donations.
If your pictures haven't been written over on your hard drive.
The last thing that I tried and liked is Scavenger.http://www.quetek.com/download.htm
I tell you what little I know about it. I just played with it retriving small items.
You should download to a CD not your computer. If you download or write over your
pictures their gone.
When you go to scavenger to download the Demo (Free Demo) look for this.
filescav.exe (Executable file, 1,134 KB)
filescav.chm (Help file, 54 KB)
I didn't download the help file.
Scavenger Demo will let you retrieve pictures for free.
You can't recover to your hard drive. You must use an extra drive of some kind to save
your pictures to. I used a USB Sandisk. Cost about $20.00. From that you can move the pictures
to your computer.
As best as I can tell when you buy the license they give you the code to make the
Demo work to recover as much as you want.
Select O Drive, I forget. Try different settings.
Click on the header TYPE and all your Jpeg files will be grouped together.
You don't have to buy a license to recover pictures.
I found out about Scavenger when someone wrote about recovery of 5000 pictures