Hi,
It depends on where do you plan to pursue your PhD. In most universities you will have to find a potential supervisor who is willing to supervise you if you are admitted. You should have a rough idea about your PhD thesis since most likely you will need to submit your preliminary thesis plan when applying to the PhD course. In addition you will probably need approval by your supervisor and 2-3 recommendation letters together with your own letter of motivation. Of course documents of your previous studies, CV, academic research and language skills are required too.
The scholarships can be tricky. Again it will depend on the university, some universities provide all students with a salary (for example universities in Switzerland) or scholarship (Estonian universities), some offer it only for limited number of students based on their study results. Anyway, I do not recommend choosing a course only based on available scholarships.
So, I would say that the most important step is to find yourself a good supervisor. I suppose you have some contacts with professors in university of Manchester or somewhere else.
Good luck!
Mia
http://www.universitiesineurope.org