You have the action of the forms set to be

http://www.southfloridarentals-homesales.com/dbts_abvfp.php

but the ABVFP is installed in a folder called "ABVFP" so the form action should be

http://www.southfloridarentals-homesales.com/ABVFP/dbts_abvfp.php

And yes, you need to setup the thankyou page and the error page before it can work. At a first moment, you can use the pages that came with the zip. Open the .bvp files that came with it, in the "BV pages" folder, and save them on your computer, then publish them in your site.

__________________
Navaldesign
Logger Lite: Low Cost, Customizable, multifeatured Login script
Instant Download Cart: a Powerfull, Customized, in site, DB driven, e-products Cart
DBTechnosystems.com Forms, Databases, Shopping Carts, Instant Download Carts, Loggin Systems and more....
Advanced BlueVoda Form Processor : No coding form processor! Just install and use! Now with built in CAPTCHA!