When your ipod
is plugged in to your computer, go to the 'Computer' of your PC part where all the devices are listed. Double click on your Ipod (it should be there) and the photos will be in there somewhere, probably under the name of something like 'Photos' or 'Photo Cache.'
Right click and save them. It might not let you do that though, in which case you will have to drag them to wherever you want to put them, but clicking on them and moving the mouse to wherever it is you would like.
Hope this helps.
If you have an Ipod like my one, photos should transfer automatically. Just in case, when in Itunes, ensure that you click on 'Photos' when your Ipod is plugged in and tick the box to syncronise them.
Beware, this will have a big affect on space.