You really need to start to basics. 
Here's some code that will allow for scroll bars.
HTML Code:
<div style="display:block; width:500px; height:500px; overflow:scroll;">
<img src="/..." alt="" />
</div>
Any image larger than your set height and width will have a scroll bar show up. If you only want it scroll in the x/y direction, change overflow:scroll to either overflow-x:scroll or overflow-y:scroll depending on how you want it to scroll. The display:block is not really necessary since I have defined height and width, but I'm so used to throwing it in everywhere that I just put it in anyway.
It's good practice to:
A) Define width and height in some sort units, like pixels above.
B) Avoid using tables to format.
C) Link all CSS to a CSS file instead of using style="..." in the div tags like I did in the code above.
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