It's a pretty good blog, but then again, what do I know.
The Blog looks good. Resizing the pics to meet you needs is easy. You can make the pic any size you want by adding height and width parameters to your HTML string. Most times all you need to do is add the height setting. Just give it a number (in pixels) to go by.
Just add the part in red to your string:
<a href="http://www.URL-of-webpage-to-be-directed-to.com"><img src="http://tinypic.com/picture_name.jpg" alt="Image hosted by TinyPic.com"height="400"></a>
Play around with different sizes until you get one that fits and then save your page and upload it.