PageLines installs in the same way a theme installs on WordPress. You can install PageLines directly through WordPress or via FTP if you prefer. Here's how.
You might want to use your FTP client to install PageLines. If you do not have an FTP client you can use something like FileZilla. Now that you have a file uploading monster on your side capable of striking fear in the hearts of urban populations everywhere, here is how you install PageLines through FTP.
Now thats your up and running, check out the Getting Started.