Thank you for replying. I contacted the other department's secretary and she told me that there are spots but without any financial support to me for the first year.
Now, I am wondering if it is usual to transfer from one PhD to another after a year or two. I understand that I will have to start the new program because PhD programs have different course requirements.
As I said, I do not feel I am happy becuase it seems that not only have I turned down a better program with better research capabilities, but also my current program lacks the research variety I thoght it might provide. Would this be a good excuse for applying to join another program?
I am also concerned that I might need recommendation letters from the program's mentors for a new application, would this be easy or will they be unhappy about it?