Although PES 2010 was released on 10/11/2010, I am surprised that not all of the major transfers were reflected in the game. This should not be a big issue as we are able to fix it ourselves, and ultimately we are interested in the gameplay of PES 2010. For the benefits of those who were too busy trying out the game to notice, here are some of the transfers you might want to make changes in edit mode.
Sneijder From Real Madrid to Inter Milan
Robben From Real Madrid to No Club (As Bayern Munich is not in the game)
Shevchenko From Chelsea to Dynamo Kiev
These are those that I noticed while playing around with different teams. I shall keep you posted of any addition transfers. Please leave a comment for additional transfers that I missed out. Thank You and have a great day ahead!