Can't find your nodes? Neither could we. So it turns out that Xpath doesn't behave well with default namespaces. This is what Corey and I figured out...hope it helps.

Example XML

<Response xmlns="http://www.badpopcorn.com/solutions">
  <solutions>
    <solution>Don't got any</solution>
  </solutions>
</Response>

Although you can load it into a document, you can't find any nodes without a little hack (using the word little loosely). Ruby example.

doc = XML:Document.file('http://badpopcorn.com/file.xml')
dn = 'dn:http://www.badpopcorn.com/solutions'
doc.find('//dn:solutions',dn).each do |node|
  r = node.find("dn:solution",dn).first.content
end

Yea, we know how you feel. Way to go Corey.