Hi all! Hope your all well!
My wife (on a Spouse visa) has been in the country over 2 years now and spouse visa is expiring early next year.

She has passed the Life In The UK test.
To get the spouse visa she passed an English test in the Phils. The test was taken for entry clearance for spouse visa.

The qualification she has is IELTS: Listening 6.0, Reading 6.0, Writing 5.5, Speaking 6.5, Overall Band score 6.0. Taken 8/8/2011.
We have the Test Report Form showing this. Is this a good enough english test and results when applying for permanent residency?
Is the Test Report Form enough paperwork or is something else needed? Is it still valid time wise or does my wife have to take it again.
Bloomin confusing this visa application malarkey.

Thanks in advance for any help & reply!