Popmart Live from Mexico City was scheduled for DVD release in April 2001 but was cancelled at the last minute.
The Sydney 1993 Zoo show was suppose to be released a year later but has also been scratched. Last word I heard is that Popmart may never be released officially on DVD but that Zoo TV will be at some point.
Yes, but look on ebay and get them for cheap. Just make sure that you get the real deal and not a copy. If there's a scan of the real cover, go for it.
Edit: Or not, because I just noticed you were from Norway, and the postage from elsewhere will be be a bitch.