noooo, "try" indicates the possibility of a failure, there is no way to fail this. The post from Highvoltz is clear and easy to follow.
Anyways, the profile in question you want is this one: http://professionbuddy.googlecode.com/svn/trunk/Professionbuddy/Profiles/Fishing1-525(dalaran).xml
right-click and choose "save as" or something similar depending on what browser you are using.
But try and re-install it all, it will be usefull for you in the future to know how to do it.