Do I have to modify the nms perl script...

I am using DW cs4 and created a registration form on on my website that is hosted by 1and1. I am trying to use a custom ''thank you'' page after the user submits the form by using the redirect code in my form but i keep getting the ugly default ''thank you'' page gernerated by the formmail.pl script located on my cgi-bin folder. Do I need to modify the script? I let DW code for me and I used the full url of the custom thank you page I created with DW. I thought by coding with redirect the script would know what to do without needing a modification.

Your help would be greatly appreciated.

red lipstick