Hej!
We call it a padlock in english. Actually there's a forum at
http://www.lockpicks.se/forum/index.php. I see they have the MIT guide there in svenska, so you should get it and read it first. Beware of the forum as I think it is associated with a swedish lock pick supplier who doesn't always seem to supply the goods paid for, but I could have misunderstood the relationship. There you could ask questions in swedish, but to be honest 'lockpicking101' has a lot more information for you.
Also read all the resources here, there is an awful lot of helpful stuff and you should read through all the threads, before asking very basic questions as they do seem to get asked a lot, and some people get cross.
I am guessing the padlock you have is a cheap one? I can't see a brand name.
Ha det saa bra!