Small patch which doesn't change anything functionally, just removes notices by defining variables, and using isset() as opposed to &&.

Index: creativecommons_lite.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/creativecommons_lite/creativecommons_lite.module,v
retrieving revision 1.3.2.2
diff -u -p -r1.3.2.2 creativecommons_lite.module
--- creativecommons_lite.module 14 Nov 2008 07:00:28 -0000   1.3.2.2
+++ creativecommons_lite.module 16 Dec 2008 13:09:52 -0000
@@ -272,8 +272,9 @@ function creativecommons_lite_block($op=
         
         $nid = (int)arg(1);
         $node = node_load(array('nid'=>$nid));
-        
-        if ( $node && arg(0) == 'node' && ( $node->cc_lite_license ) && ( (arg(2)=='view') || (arg(2)=='') ) ) {
+        $block = array();
+
+        if ( $node && arg(0) == 'node' && isset($node->cc_lite_license) && ( (arg(2)=='view') || (arg(2)=='') ) ) {
           if ($node->cc_lite_license) {
             // append html 
             $output = get_license_html($node->cc_lite_license);
@@ -282,9 +283,9 @@ function creativecommons_lite_block($op=
               $block['content'] =  '<p class="creativecommons">'.$output.'</p>';
             }
           }
+          
+          return $block;
         }
-        
-      return $block;
     }
   }
 }