Im not really into that view. One thing to consider is that these are lining up on an x and y axis by the logo's corner (not the center). So trying to line these up vertically can be a challenge with different results for each logo. They will look off centered in that tight of a space. Moreso that lining them up horizontally with more space around them. Does that make sense at all? There may be a way to get them centered but I dont know how.
To move logos around freely -
First size the flags how big you want them to be. Then just look in the xml for the <posx>735</posx> and <posy>-233</posy> beginning at line 979. There are different sections with different positions for each set. IE The rating, studio, format, video, audio. Just play with the x and y numbers until things are moved where you want.
Im not sure how to move the main poster over. But Im sure its in there somewhere just have to see where.
When there is no icon diplayed there are placeholders for it already.