Hi here is an update to my attempts to debrand a SE W890i.
Vodafone provided the info to unlock the phone from their network for free.
I have been successful at last in debranding my phone.
The the files/programs used are available on this site.
I have used the files labelled R1EA030 and not R1EA033 for the main file.
I used R1EA030 FS Western Europe and not R1EA033 FS Western Europe.
K8501 1201-0077 Generic We seems to work as the MISC file in ZIP form.
A2uploader Version 5 (software) is thought to be a bad program by Norton Internet Security, but use it anyway.
On my phone (SE W890i), it is hold down "2+5" and not "C".
Time taken was about 15 minutes.
The Tutioial as mentioned above is excellent.
Many thanks to "Boysie" for his prompt replies and his help.
Best regards to all,
Martin.