Hi,
Our Compatibility information was not current. We’ve just now updated the page to reflect its compatibility up to 3.8. If you’re using 3.5.2 and are having issues, I highly recommend reaching out to our support team, at support(AT)formstack(DOT)com.
Hi,
My name is Brian Graham, and I also work at Formstack. I just tested our plugin on a test instance of WordPress 3.0.1 (as well as 3.4.2) and I was able to get the form to show up without any issues.
I’m going to mark this topic as resolved for now and encourage you to use our Zendesk system ( https://formstack.zendesk.com/tickets/new ) to get back in touch if you’re still having issues.
Brian Graham