Users/Comments/Posts Widgets

Ive just installed these widgets and they work great. One small issue i'm having hopefully you can help me fix this issue. In Chrome, and Opera it is rendered perfectly. BUT, in IE and Firefox the Avatars have a blue/purple border around them because they are links. Ive tried every CSS trick I could think of to get rid of these boxes... Is there a css tag in the plugin that I can use to fix this or will I need to modify the plugin code, If i do have to modify, how do i do it? is the site with the issue.