How can I show data from child and parent attributes

Hi,

I do have an issue with displaying the data from - http://weather.yahooapis.com/forecastrss?w=2122044&u=c

The plugin imports only data inside <data> such as <title>, <description> and etc. The question is how can I make the plugin to import data from parent <channel> such as <yweather:wind>, <yweather:atmosphere> and <yweather:astronomy> into meta boxes?

Thanks a lot.