Legally, you can't. The domain is owned by someone else and only they can make the change. Legally.
The following link gives the name of the admin as Bruce MacDonald. That is the person you need to contact.
If you want the domain name, Network Solutions does allow you to make anonymous bids for a domain.
The domain name was renewed in June and will expire in June 2009.
What is interesting is that the domain is actually owner by 1and1.com which is a web hosting provider. Chances are if you want the domain name you would have to talk to 1and1.com.
Of course, you can wait till June 2009 and if the domain is not renewed, you can buy it.
Have fun!
http://www.networksolutions.com/whois/results.jsp?domain=annearun.com