Use how manys blogroll do you want in your site, and put everything your place.
Just put the name of link category that you like to show, and then everything is ready.
Here is the file
Update: Sorry for the late.. New release.. 1.2… bug fix
Update 0.1: I was a little out of time, but its fixed the updated problem, now I’m working to put all categories to show and you can select with one you wanted to put in the widget (I know… my english is terrible)
Update 1.0: Just included the source-code in the github. Check here. Will have an update about all the issues until the end of this week. (Thinking of redoing the code).