As I explained earlier, I have indeed created a dir for the uploaded pictures, I have succeeded in uploading from the upload.php file, which paths read as follows:

require($DOCUMENT_ROOT . "/forum2/global.php");
$path = "/usr/home/martin/www/forum2/images/uploaded";
$cpurl = "http://www.juventuz.com/forum2";
$shortpath = "/forum2";
$imagepath = "/forum2/images/uploaded";

The picture comes up alright in the upload.php script, it does indeed upload to the specified dir, everything seems to be in order, except for displaying it in the user profile. I can also handle the pics alright from the Admin CP.

I really appreciate you people trying to help me but I wouldn't have said what I did in the first post about all those thing working well if I had missed these things you mention. There must be some other possibility...