Did XL operate B747's as a matter of interest??
No, the ones they used for SFB and Falklands were Icelandic, they were operating 2 A330's (on French register i believe) and 3 76 (2x 200 and 1x 300) for the SFB's. The 330 heading to manchester has been diverted to France now I think.
Very sad news, lots of friends at XL, good luck to all involved.