Profile Field External Link

I run the forums for an online game alliance, Basically what I want is to create profile field that when clicked will direct you to that member's game account (outside link). Preferably an image would be used instead of the full text link

The link i want is: http://www.cybernations.net/nation_drill_display.asp?Nation_ID=225661
Image: http://www.cybernations.net/images/world.png

Basically this:


I don't much experience coding in this way, any help is appreciated