Technically attribution (CC BY) requires the url to be linked, though I've seen it argued it just needs to be displayed.

http://creativecommons.org/licenses/

http://creativecommons.org/choose/

How are you doing your 302 redirect?

If it's htaccess, either just change 302 to 301

So if it looks like this - redirect 302 /oldpage http://example.com/page - just change the number

If it's applied by a rule add R=301

RewriteRule ^oldpage(.*)$ /page [L,R=301]

If it's php

header("HTTP/1.1 301 Moved Permanently");
header("Location: http://example.com/page");
exit();
?>

if it's asp

<%
response.Status = "301 Moved Permanently"
response.addheader "location", "http://example.com/page"
response.end
%>

Double check those though, end of the day here, getting tired

Damnit, the one time I don't ctrl+c before hitting submit, grrr.

Anyway, I misunderstood, I though you were pulling descriptions from a .xml file not having your feed crawled.

Do you really want your feed to be indexed? Just duplicate content isn't it?

I'd think about blocking bots from crawling it (though please seek a second opinion first).

And to answer your actual questions the RSS description is not the same as the meta description (though I'm not sure if adding it will stop readers parsing the feed).

What happens when you view source? Is there a tag?

If it's their I'd imagine you're all right, if not, then you'll need to add it.