This is the way I do it....

Below the fonts info (size colour etc) there is another line, go across the line to find the blue globe thing... click on it.... type in the link and it will give you:
[ URL="http://petoftheday.com/talk/showthread.php?t=41856"]http://petoftheday.com/talk/showthread.php?t=41856[ /URL]

Take the the bit not in quote marks, so on this link it would be the part highlighted in red
[ URL="http://petoftheday.com/talk/showthread.php?t=41856"]http://petoftheday.com/talk/showthread.php?t=41856[ /URL]

And replace it with the text you want... so Kuhio with this link...
[ URL="http://petoftheday.com/talk/showthread.php?t=41856"]Kuhio[ /URL]

Of course take the spaces out, I only added them in to show you how it's done.... so it will be like this:
Kuhio

There may be a quicker way to do it, but I hope that helps for now