I don't work for Webassist or anything - but it does work out of the box (at least, it did for me).
That error message that you got usually means that you have a "<php" or closing PHP tag with spaces or other characters right in front of it or right after it, which you can't. I'm guessing they'll have to see your php file to fix this.
This has happened to me before, and it's usually because I edited something or did something in Dreamweaver (even with, and especially, using their plugins) that added code where it wasn't supposed to. ie. I added a function through a webassist plugin or some other plugin, and it added the code right after an html tag or something, instead of placing it on a new line.
I don't know if any of that helps, but I'm sure webassist guys/gals will help.
Loaded all the files and made the database, went to the store and i got this error, i though this was supposed to work out of the box? i didn't get to set up a "https certificate" does this have anything to do with it?this is the link to the store store.gallery808.com/
Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /home/galler11/public_html/store/Connections/localhost.php:3) in /home/galler11/public_html/store/WA_eCart/WA_eCart_Definition_PHP.php on line 479
Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/galler11/public_html/store/Connections/localhost.php:3) in /home/galler11/public_html/store/WA_eCart/WA_eCart_Definition_PHP.php on line 479
