Fixed.
All pictures was moved to the same file on the server. So the second picture "won", since it overwrote the first one.
I have also set the time limit up to 360 secs (before 180 secs). I hope it dosent got that default limit is on 30 secs normally.
If server have GD installed, the server should resize the picture itself to max width in size, otherwice you get a error if the picture is to big anyway (400 in width). Please add that limit to the rules (I just did that).
The website itself does "download" very fine with a very good connection. Not sure it download with full internet connection (I have 10mbit download), but it close.