Im using a plugin called WHMCS-Bridge. On this page

Im using a plugin called WHMCS-Bridge. On this page http://bit.ly/1OsI9qR there should be icons beside the links Cart, Notifications, Order Hosting etc.. but they are not displaying. Ive been working with the plugin developer to find a solution but he can't seem to figure it out and its been weeks already.

I know the icons are there, they appear when the plugin is disabled. We just can't figure out what is preventing them from displaying when enabled. We went tried MIME Types but that didnt change anything. We added some stuff to htaccess, didnt work. Is there any way you could inspect and find out whats holding them back? Its easy to see on Chrome browser, the missing icons are all replaced by squares.

BTW, I could really use a tutorial on using a browser inspector, I can't make heads or tails of all the info they display.