Installing Prologue theme

Hi

Can anybody tell me how I install the Prologue theme? I thought i could find it in the theme directory and just upload it to my wp-content/themes directory. But I can’t find it!

I’m told it’s available through subversion (https://www.ads-software.com/support/edit.php?id=729259) but I don’t know what that means!

I’m pretty novice, haven’t even installed wordpress my self, so I hope there is some easy way around it.