I am grateful to Anonymous, who unfortunately made a booking that was subsequently cancelled, for this news.
It appears that Vueling are not launching their promised Lisbon to Seville flights on 1 December 2007 as originally stated.
I apologise for the inconvienence you have suffered.
I try to ensure that information I post on this blog is correct at the time of posting.
What operators subsequently do, especially in the case of airlines such as Ryanair and in this case, Vueling, who do not announce publicly the ending of services or dropping of potential new services after being announced, it beyond my remit.
Again thanks for the info.