Adjust your stylesheet_flexible_attributes.css like this:
Code:
#wAttrib-1, #wAttrib-2 {border: none;}
#wAttrib-1 .attribsOptions, #wAttrib-2 .attribsOptions {clear: both; border: 1px solid #000000;}
.attribImg {height: 88px;}
.attribImg+br, #wAttrib-1 div.back, #wAttrib-2 div.back {display: none;}
#productTellFriendLink {clear: both;}
To remove the text under each image, change the setting Ajeh mentioned:
Image Styles:
0= Images Below Option Names
If you have only the images, you can have more to a row, and you can make their height smaller in the stylesheet.