OK, standard procedure to get data is:
Get a feed address (something like
http://news.yahoo.com/rss/topstories) and put it under feed URL.
Then select a keyword to filter or a few keywords separated by "," (without the " they are to stress the semicolon sign)
Choose a section/category to publish all gathered data, add advertising if you have one (it can be a script like google adsense too) then save and you're set with the feeds
After that, you have two options, one is manual and it's to check a feed item's checkbox and then select "Items" on the top menu and you'll get a list of all matches of your keywords on that list, the other is a bit more automatic and it's to click the "Post all" option which will publish all gathered items from all feeds (warnign here: php has a n execution time, if you have many feeds and they took long to fetch, you might end up with a timeout and no feeds posted...)
ok, hope it helps a bit.
Regards,
Mario
P.S.: manual is on the way, it will be reworked after the version 2.0 release.