If the website does not post it, then look for any copyright date and use the latest (newest) date. For example, if the copyright says, 'website.com - Copyright 2002-2007', then the published date of the website is 2007.
In the first few pages, the published date will be inside. If it has not been republished and is the original, it will state the date. If it is a later copy, it will give the date it was first published and the date it was republished. Hope this helps.
No. At this moment in time she does not have a boyfriend. I have a feeling she will date Adam from Owl City. Taylor wrote him a song called "Enchanted" Track 9 on Speak Now. Adam wrote back a song also called "Enchanted" :)