Brian, please look here, this was the information you really need after you have sorted out the C2 form. The below link itemises the supporting documents you will need. Make sure you have them all if required.
http://ukinhongkong.fco.gov.uk/resou...pplication.pdf
CHECKLIST OF REQUIREMENTS
COMPULSORY DOCUMENTS
Please present ORIGINAL documents and a photocopy of each document.
For requirements marked with asterisk (*), we require only the original document.
Completed form (please down load from the website) *
Birth Certificate on NSO (National Statistics Office) Security paper
Consular Birth Registration Certificate if applicable
Parents’ birth certificates –
British parent: submit full/long version UK birth certificate, or Birth Registration, or Naturalisation certificate
Philippine born parent: submit NSO birth certificate
If applicable, parents’ marriage certificate – submit NSO marriage certificate if married in the Philippines
If applicable evidence of parents’ termination of any previous marriage (divorce decree nisi, annulment) *
CRS Form no 5 - Advisory on Marriages (available from the NSO) *
Submit CENOMAR (Certificate of No Marriage Record) for Philippine citizen parent if not married to the British
parent of the applicant
If parents are not married, mother’s written consent to the issuance of a passport to her child
If applicable, father’s/mother’s death certificate *
If applicable, birth certificates of all other brothers and sisters (applicant’s siblings) *
Both parents’ passports from around the time of applicant’s conception *
If the British parent is overseas, a copy of all pages of his/her UK passport, certified by a notary/solicitor, will be
accepted.
Home Office documents for Philippine nationals who have become British Citizens
Current or previous passports held by applicant *
Mother’s antenatal/postnatal/delivery notes, scans and ultrasounds from hospital (from hospital in the UK and in
the Philippines), photos of mother pregnant. If unable to obtain original records, please submit copies, which have
been attested by the hospital
ADDITIONAL REQUIRED DOCUMENTS
Depending on the applicant’s age, we may also ask for school records, local photo identity documents,
photographs of the applicant growing up, parents' UK documents.
I DONT HAVE THIS AVAILABLE ERE IN THE PHILIPPINES ? ( If applicable evidence of parents’ termination of any previous marriage (divorce decree nisi, annulment) * ) im divorced in uk 8 years ago ? but dont the papers at hand ere, has anybody else had to show this or is just if they ask ?
no no !!!! i dont have this ((divorce decree nisi, annulment) * )) so looks like i will have to get a copy when i return to uk and send it to my wife ere in philippines and let her go to manila and submit the application 
