I just bought JFB and it says that it supports 2.5 as well as 3.x on the download page.
I tried to install but it fails on Joomla 2.5.
Why is this? If I knew it does not work on 2.5 I would not have bought it, but now I spent 60USD on something that's useless to me.
If the extension is not compatible with 2.5 then don't put a notice up saying it is.
Can I convert it somehow to work on 2.5 or do you have older versions?
The installation package should work on Joomla 2.5. One of the most common reasons that we see for failing to install is a configuration of your server for PHP upload size cap. Please check out our "The installation package fails to upload" topic on our Common Support Questions. If this doesn't help, please include any error messages that you are seeing when performing the installation. With that information, we'll be able to help narrow down the cause.