Hello ... :)

is there any possibility to show the avatar and not only the square with the face of a friend on my profile?

You could try <style> {height:250px;width:125px} </style>

But it'd be easier to just make a section and display their avatars yourself [*avatar=Username]

Thank you very much ... i did not know, that I can use those subetacodes on the profiles ... Thank you a lot <3