Looking at the hits files, these parameters are all used in URLs like this: www.hmrc.gov.uk/tools/taxcredits/results.htm?tickdPmt=28&dates=29%2F01%2F2014

While changing these parameters does result in different content, I struggle to imagine that we'd actually want to redirect them to a different place. Archive links generated for these URLs would retain the path and query as given, so if it was archived they would still get to that content.