I know it's not currently possible to connect Publicize with a Page rather than your Profile. You'll have to either draw it in manually via RSS using an app such as Notes, Networked Blogs, etc, or you can post it manually. RSS Graffiti is also an app that can write from RSS feeds to the news stream (wall) of Facebook Groups.
RSS Graffiti periodically checks the RSS/Atom feeds that you specify and posts any new entries it finds to the Facebook Walls that you specify. You can get any feed written on any wall (Facebook Profiles, Fan Pages, Groups, Events and Application Profile Pages). In fact, multiple feeds to multiple walls. You choose the combination. http://apps.facebook.com/rssgraffiti/