[ask] how upload and validate the form

[eluser]pistolPete[/eluser]
Where do you set your upload configuration?

copied from the userguide:

Code:

$config['upload_path'] = './uploads/';
$config['allowed_types'] = 'gif|jpg|png';
$config['max_size']    = '100';
$config['max_width']  = '1024';
$config['max_height']  = '768';

Is your upload directory writeable?
Is your form field called "userfile"?

Also have a look at this thread: http://ellislab.com/forums/viewthread/94736/