Unless the developer wrote in the readme file that we first had to install a plugin before installing the component, we were not able to get the installation fixend... After placing a request on the developers forum the developer helped us out with it in just a few hrs (read minutes ;).
We are very satisfied by the support and are satisfied about the product itself!
I would like to start with giving my complements for this component! It is a very nice and complete tool. To make a form the way you want it isn't easy but with some help out of the forum pages... yeah it works!
After installing and setting up my first form I tried to use it. The form shows up quite nice but after filling it out and press the send button... Oeps... An error on line 1036 in fabrik.class.php made the use of the component useless...
Because I couldn't find any solution on the web (also not in the forum), I decided to make the line invisible by putting the line between /* and */ in the php script.
I do not know if this solution will help you out but at my site it works quite well.