Currently pursuing a masters in comperative social work in Norway up to end of May 2006, but wold like to apply for a PhD in the same field or development studies

You can do PhD in the areas you mentioned. But be seriuos with your academic work and also try and do some part-time work to save some money. You need to register some amount of money to start a PhD, once you are in the system you can struggle for funding in your school. You need very good first and second degrees to get funding for PhD in UK. I completed a comparative studies in Univ of Oslo and now over half way in PhD in London. Best Wishes