URGENT ....PLZZZ (migration for was 5.1 to was 6.1 in production env)

[rake...@gmail.com]

I had to prepare a proposal for the migration was 5.1 to was 6.1 in
production.
Windows env and all are the base nodes .....no cluster envi.

Can any one let me know.. what the key steps and points that i have to
point on and who many hours i have give an estimate.
And how does i know whether the current application running on was 5.1
is compatible with was 6.1 with any issues,
i'm stressing because it is prod and i'm the only one responsible for
this whole process.

Do any one who previously did the migration of was 5.1 to was 6.1
share there experince ..plzzzz
Also if any one have any doc/ proposal that you have to submit to the
manager for this whole process ...that would be a life saver.

Plzzz any kind of help is appreciable.
Thanks in advance.