Change font size and photo borders

Ok, I've been searching for hours and have actually gotten much of what I need done on my own however a few things elude me.

First, I want a border around all my images and while I have managed to get them around most, the images for my category listings are not showing. I am sure this is located in the css file but I can't find it. Help....

Second, The font size and location under the images on this page (and other pages like it) is too large and not close enough to the image, how do I fix this:
http://www.polishpotterystore.com/shopping/index.php?main_page=index&cPath=11_29

The font under the images on this page is the size and location of what I am looking for:
http://www.polishpotterystore.com/shopping/index.php?main_page=index&cPath=11

Finally, the links on the website are a tad too light. I want to darken them up but after much trial and error I cannot find where to change this font color.

My website is polishpotterystore.com/shopping

You can find all of the elements to style on your own by installing Firefox and its Web Developer and Firebug extensions. The Web Developer Information > Display Element Information button will show you the classes, ids and ancestors of any element you select, and the CSS > Edit CSS button will let you try styling and see the results in real time without messing up your actual stylesheet.
Firebug's right click > Inspect Element link will show you all of the style rules that affect any given element.