This effects RavenNuke version 2.5+ (and any earlier versions that use nukeFEED)

Depending on your error reporting level and the version of PHP you are using you may experience errors being reported within the nukeFEED administration area and also the feed side block.
Most errors indicate the problem file is includes/xmlrpc/xmlrpc.php, which is not in fact the cause.

The error is being report because '&' (the ampersand symbol) is used in PHP to pass an object to a method or assign a new object to a variable by reference.
This is deprecated in PHP 5 because PHP 5 passes all variables by reference by default.

The solution is to do a mass replace in the file includes/SimplePie/simplepie.inc
Search for "=& new" (without the quotes) and replace with "= new" (without the quotes.

If you do not experience this error, do NOT edit your file because the chances are high you may be using PHP4 and the change will break the script.