Easy install disables the core plugin. Just install and then clear your caches (site and browser). There's even a notice to tell you to do it.
The No Numbers Framework is also installed as part of the package if you don't already have it.
Having said that, I can confirm the issue with Joomla 3.1.4 - uninstall it before upgrading Joomla. Hoping an update to BFStop isn't long in the pipeline. i will certainly installing it :-)
Relatively easy to use compared to some, and the tutorials on the dev's website are very helpful. There's no "forms page" as such, just create your form in the admin side and then embed a form in an article via the link on the article's editing page. Want a "forms page"? Make one :-)
It's simple if you want it to be and there's a full CRM there with contact logging in admin.
Had an issue installing, which was entirely my own doing because I didn't read the tutorials first. There's four packages in the download, install them separately.
I've had cause to contact the dev once and my query was answer in minutes - excellent!
Can't believe this is free!
Just click on the "Add attachment" link when editing a document and that's it. Works from the front-end or back-end and there's plenty of display options, etc.
Quick word about the developer, Jonathan. Very quick to reply to queries. Top stuff and a really good extension as well :-)
One one thing I struggle with; pdf files upload to subdirectories of the default /images folder using the extension and appear in Media Manager. However, SP Download doesn't seem to be able to find them afterwards. No problem if they are in the /images folder though. A little odd but I've tried everything I can see to sort it out.
Don't let this put users off though, as this extension is otherwise really good and simple to use :-)