--- stringoverrides.admin.inc	2008-05-06 16:05:51.000000000 -0400
+++ stringoverrides.admin.inc.new	2008-07-09 14:10:02.000000000 -0400
@@ -185,7 +185,12 @@ function stringoverrides_admin_import_su
           $currentoverride = substr($buffer, 7, -1);
         }
       }
-      
+
+      // Save old string
+      if (!empty($currentstring) && !empty($currentoverride)) {
+        $overrides[$currentoverride] = $currentstring;
+      }
+
       // Clean up and save the imported data
       fclose($handle);
       file_delete($file->filepath);