Re: Photos - If you are using Microsoft, you can right click your photos and open with Microsoft Picture Manager - then select picture on the menu (top of screen) and choose compress picture, from the task pane (left side panel) select web pages and then click OK. You then need to save your new resized picture. Then your pictures are ready to upload on to this site. Hope this helps
I use a pretty basic (and outdated) technique that is still effective and easy. I open up my pics in Paint (under Accessories on your PC) and click on Images --> Resize/Skew and you can make them as small as you want.