English Requirement for NATURALISATION

Hello,
I would like to apply citizenship for my wife. Not sure about her ESOL certificates are acceptable or not for "English language qualifications". She has following ESOL certificares:

- Cambridge ESOL Entry level certificate in ESOL Skills for Life (Entry 1) - passed in March 2007
- Cambridge ESOL Entry level certificate in ESOL Skills for Life (Speaking and listening) (Entry 2) - passed in June 2007
- CERTIFICATE OF UNIT CREDIT TOWARDS Entry Level Certificate in ESOL skills for list (Entry 3) by City & Guilds - Passed in Sept 2008 --> Speaking and Listening Entry 3
- CERTIFICATE OF UNIT CREDIT TOWARDS Level 1 Certificate in ESOL skills for list by City & Guilds - Passed in Sept 2008 --> Reading and Writing Level 1

She did these course in 2007 - 08, are they still valid if the accept them.

She does have a B.Com degree but in her local language so only way is ESOL. Please reply


Regards,
Naveen