Linux file system
Most people coming from windows have a hard time understanding the linux file structure.
They are use to locations that start with letters.
Linux file structures don’t work like that and that can be confusing.
This is a simplified picture of the linux filesystem.
So following this picture your photos are located here: /home/username/photos
It’s been a long time since I used windows but in windows that would be something like this:
c:\documents and settings\username\my pictures
A nice guide for newcomers on the linux file system can be found here.
Once you get used to the structure, you’ll find that it’s better and more easy to use.