Cronjob for Feed Importer not working.

Hi,

I have the following problems running Feed Importer cronjobs:

1: I can import feeds manually, by executing them in the Feed Importer dialog, but not via cronjobs. My host (siteground) said to use this syntax:

wget -O /dev/null "http://silvergoldadvisor.com index.php?option=com_easyblog&task=cronfeed"

But the feeds are not imported automatically.

2: When importing manually not all the posts in a feed is imported - only the latest, like in this feed url:

http://kingworldnews.com/kingworldnews/KWN_DailyWeb/rss.xml

Is there something wrong with the syntax to be used in EB?

Kindly,
Carsten