CodeFlavors Floating Menu for WordPress requires at least WordPress 3.4 and uses the default jQuery version WordPress provides.
1. Download the plugin
This step is simple. Just follow any of the download links available here.
2. Log in to your WordPress admin
Once that is done, go to Plugins – Add New
On Add new page, choose Upload from top menu and browse for the location where you have the ZIP file for CodeFlavors Floating Menu on your computer.
3. Activate plugin
Once the upload is done, activate CodeFlavors Floating Menu.