Syndication on MU subdomain pages

Hi

We are using Magazine theme and we have installed the plugin Feed Wordpress but we can`t get this to work on our subdomain member pages eg http://printing.4.biz. I have tried differnet plugins and also tested them on differnet member pages. I am getting this error messages

Diagnostic information
HTTP request completed
Status 404: Not Found. There is nothing at this URL. Have you checked the address for typos?

HTTP Transports available:
WP_Http_Curl

Can anyone help?

Thanks !