Upgrading from version 2.0.3 or later
After logging into your Form Tools installation, just click the "update" link. This appears in different locations depending on your theme. The default theme shows it in the top right; Classic Grey and Deep Blue show it in the left navigation menu. Click that link! This submits all relevant information about your installation - your installed components and their versions - to the Form Tools website. We then do the job of figuring out what components have been upgrade and generates a custom zipfile containing the appropriate components.
Upgrading pre-2.0.3 versions
After logging in, go to the Settings » Main tab. Here, next to the version number, there's a button labeled "Check for Updates". Click it! This submits all relevant information about your installation - namely the versions of the various components you have installed - to the Form Tools website. We then do the job of figuring out what components have been upgraded recently, and let you generate a custom zipfile containing ONLY those files that have changed.
After downloading this file, you need to overwrite your existing files. Simple upload the entire contents of the formtools/ folder to your own installation.
And that's it! Log out and log back in. Your installation will be automatically upgraded.
Upgrading Form Tools 1.x to 2.0.x
Form Tools 1 is very, very old! We used to have an upgrade script to allow you to update to an old version of Form Tools 2, but even that is now out of date. I'm afraid there are no longer ways to update to the new versions.