Well, uhhhm, I really have never used one of those websites that store photos for you, but I have myself encountered quite many of those sites that will "forbid" right-clicking. There is a very simple way around it, but I don't know if it'll work on these image hosters...

Try this:

Go to the page where you can see all your images (if that is possible even), and then click SHOW on your browser's windown (if you are using Internet Explorer that is) and then SOURCE (second to last on the list). Then you will get up a window (will probably open in Notepad) with the site's source code. Skim through all the HTML code until you find the area with the URLs to the images (will look something like http://www.imagehostersurl.com/mypics/mycat.jpg) and copy the URL and paste them in your IE window and you should be able to right click it no problem.

I don't know if your area with your images is protected by a password that you made up, but if it isn't then you can give me the URL to it and I can see if I can save them for you if you can't figure it out on your own.

Hope that helps!!