Well, is there a folder called icons1 that's in the same directory as the above HTML file? And has that folder got a file in it called mclogo1-1.jpg? That's what "icons1/mclogo1-1.jpg" means.
Incidentally - I'm not sure how much you wrote yourself but that's an appalling example of modern HTML. You shouldn't use things like font tags, that should all be in CSS, tags should be lower case, tags should always be opened and closed properly (and when you've only got one like <br> use a self closing tag like <br/>), you should always have a namespace... If you're looking to learn HTML properly I'd look at the W3C tutorials, and validate everything you write with the W3C validation service to make sure you don't get any errors. Believe me that above code will generate quite a few...!
Oh and just a heads up, it's worth putting large blocks of code like the above in [ CODE ] tags so it appears like so: