How to use ProfilePicture in Navbar?

[Illthis]

Hi,

in the MEMBERINFO Template exists $blocks[profile_picture]
i want implement this picture in another template (navbar) but it is not shown there when i include the code.
it only works when i am on the site MEMBERINFO but not on any other site like forumview.

how can i implement the profile_picture in another template so it can be used even if i am not on the MEMBERINFO Site?

thanks