The answer to that is most probably No ! your 24 month visa starts from the date it was issued in the Philippines, so it starts from October 25th 2007, and will expire on 25th October 2009, because you did not arrive until the 18th January 2008, this means you are almost short 3 months for your next visa, so should you wish to apply for the extra 3 months to make up the 24 months you are required to live in UK, you would need to apply for a visa extension known as Further Leave to Remain.

This will cost you and your husband £395.00 or £595.00 for premium service.

As for your question about staying for a longer period without having indefinate leave to remain, the answer is they will only give you 6 months.