
Go to your Myspace profile and next to your picture, click edit profile. Now, it's very important that you put the code in the right place. It will tell you what section to put the code in right above the box that you copied the code from.

Then, open that section in the "edit profile" and "paste" it. To do that, you either press ctrl+p or go to file>paste.
That's it! you're done, now just click "preview" and make sure it's what you want, then hit submit; and it'll be available on your profile for everyone to see.