Well, I could put a picture of me (

) in a folder of my vbulletin directory called banners, which I had created inside the default images directory. The image is called redtyger.jpg so the src would be it's location which is
src="images/banners/redtyger.jpg. I can put anything I want to describe it, that's all it is a label.
<img src="images/banners/redtyger.jpg alt="This is a picture of me." />.