This is a nice extension, although it doesn't work on Opera browser(the developer warn this on their description, so no issues at all).. I am using it on 2 sites of mine, which is a kind of Tech blog. Thanks.
I installed this on my Joomla 1.5 site and tried but doesn't work. I changed all the available parameters but doesn't seems to work. Seems like this module has issue with the script used on the site.
This is one good form extension that i like, would recommend to anyone in need of a payment form with support for custom fields. I really like their support system especially one called TUAN. Had a problem with the captcha, but managed to fix the prob(although it was not an extension issue).. Thanks guys