I have a URL with two question marks in it (one of the parameters is another URL). I'm sure that such URLs won't easily get indexed, so I'd like to have a rewrite rule to change it from index?url=http://www.domain.com/?p=1 to /url/http://www.domain.com/?p=1 but can't seem to find a way. Everything I've tried cuts the parameters from the URL so it becomes index?url=http://www.domain.com/ Any idea how to do it?