Google Reader says feed invalid?

Hi all,

I’m having trouble with the RSS feed for my site and would love some help.

My blog is at angieoneal.com – specifically, angieoneal.com/wordpress. The RSS feed seems to work in Safari but Google Reader says “(title unknown)” has no items.” Taking on “wp-rss.php” doesn’t work either – Feedburner gives me a 404.

I have a feeling the problem is somewhere in the PHP, but I’m afraid if I mess with it I’ll just make it worse. Can anyone give me some direction? My ex set this all up – I don’t know much about PHP at all, but I’ll add/delete whatever code necessary…

Thanks in advance,
Angie