Hey, I'm looking to purchase a nice, yet fairly cheap (as soundsystems go) speaker set

I've set my eye on Logitech X-540 5.1 Speakers

I'm just wondering what input they have as I'm wondering whether they will fit in my laptop which seems to have a black orange and blue audio ports.. also my laptop says that it supports "True 5.1 Output"

Should I purchase these, if they were not to work due to the lack of ports in my laptop.. Will I be able to return them?

Thanks