I've looked into this now and it's apparent that the precious metals and other commodity summaries are no longer being regularly carried by MoneyAM's news, probably because the provider (AFX/Thomson) aren't doing them now. There were a number of changes after Thomson merged with Reuters, and I think we've lost some AFXU news in the last few months as well.
For what it's worth I use these sites for some metals news:
http://www.kitcometals.com/
http://www.minesite.com/
http://www.resourceinvestor.com/
I'll keep my eye on things and if they reappear at some point then I'll should be able to start posting them again.