It does come with software (I think you get it with the free trial if I remember right). They have their own installer and client that I put on each of my servers. When setting it up you can choose when to take backups etc. and it uses the same program to make restores - you click a different button and chose the folder or files you want to restore and where to put them (or let them copy back to where they were).
Looking at Edu-IT's comment I will now have to double check that what I have been told by my busniess manager isn't an old quote from yonks back. I can't find a price on the site either.
Even if it is a little more I am still pretty damn pleased with it as it means I dont spend my friday afternoon P*ssing around with tapes!