HELP !!!!!! problem registration !!!!

I welcome. A market isn't writing well in English and I am coming from Poland and I have certain problem I used the rally of translator... I ask for the understanding. My problem relies on it around during the registration of the new user right after installing fresh ver. dolphin on the server where a picture of the safety should be I have 6.1.4 text of the type "Error producing security image" I am calling for help in order to place the picture of the safety normally during the registration because without it it isn't possible sie on the side to register. For depicting the problem I will give the address of the strefaludzi.pl side

I think you must be talking about the captcha image?? i believe this needs your host to have the GD library in true  type font installed for it to work

It is about it that wszytko is installed correctly. There is only simply a black image instead of the image with the code of the safety during the registration of the new user with what I wrote earlier. The access path is to the file "simg.php" and there wszytko it is correctly this way at least it seems to me. If you can help me I can give to the e-mail you the simg.php file and you will see what is not this way and then you will send me back.