they didnt upscale old images they rescanned them in a very long winded maner
but the url/title is misleading with its choice of words
i avoided digital slr's and 'bridge' type cameras till i could afford a decent mega pixel, i was up untill 2 years ago using an APS and film scanner which gave me 2 or 3000 pixel wide images and as that took an hour to do at home when i found boots were offering similar sized one hour photo cd's for one pound on top of processing i went for that
mind you it cost a bomb to develop my festival rolls if i took too many with me so my digi cam paid for itself in processing costs alone
so i hope that the next camera they send into space has the best mega pixel money can buy and saves at a lossless format, nothing worse than jpg artifacts on hubble-esque photo's