Firstly this should be in general. Now you have 2 options, either get fake-flash (search it) or you can now get S-OFF by using Alpharev 1.8 (also search it)
There are no problems with using nandroid at all.
can i change the another image?
yes you can, quite easily too. the thing is if you look in the top right corner you see this box, it's intended for searching so that you don't need to ask things that have already been asked.
create yourself ...
Hi could you provide me with the default legend splash1.img too?
Grab the attachment, extract the zip and you should have a single file. Put it in your androidsdk/tools folder and do the following fastboot command.
Personally I believe that you should start with Cotulla's WWE 03. That will give you a stable WM6.1 and the instructions are in the post, and also cotulla's homepage.
It also has camera if you needed it for anything. From there you can decide w...