this is gonna soud stupid but how do u upload a new pic on ur images?

First, go to any image that you want to save.
Then, role your cursor over it and right-click it.
A scroll-down list will appear,and you should scroll down to "Save Picture As".
Another window will pop up, where you should pick where you want to save your image.
I would save it to your desktop so you can get it easily, later.
Name it whatever you want to, or if it already has a name, you an keep it at that.

After that, go to your profile and click "Upload Photos" which is located under your current pictures. Click on "Browse" and when the window pops up, go to wherever you saved the image to, in this case, your desktop, if you saved it to your desktop previously.
Find your image, click open, add your caption and whatever else you want to do, then click "Submit Image" and you will have the image in your profile.
Later on, if you want to make any image your icon, just click "More Photos" and click the little blue button under the image of your choice.

Sorry for the really long description, and I hope that I helped :]

There should be something on your profile (when you're logged in, of course) that says "Upload photos". Click that. When the next page loads, hit the "Choose File" button next to "Upload Image*:". Find the image that you want and double click it. Afterwards, hit "Submit Image" and ta-da. It should be done.