If anyone is interested and hasn't seen this site before, then it's really worth a look:-
It's NASA's ISS, Space Shuttle sightings webpage. All you do is choose your country, then you have various regions/towns which you can choose from. This will show the times and whereabouts in the sky that the aforementioned ISS/Shuttle is visible.
Endeavour is currently docked with ISS.
Good luck spotting.