What do these symbols mean?

What do these symbols, that appear when I am trying to design a database table in SQL AZURE, mean?

http://forums.databasejournal.com/im.../2012/08/1.png

What is more is this. I am lost as to what to do to solve this error. What is the operand of an image?

http://forums.databasejournal.com/im.../2012/08/2.png

Did you want to change data type of the colunm from int to image? Try drop and recreate it with new data type.