Welcome to Circle Dock and DonationCoder.com forums
For teh Zip request:
There is only the installer version, but this can be installed to any drive or folder and made portable (If wanted at that time)
I see what you are saying in regards to the set up.
By default Circle Dock follows the cursor unles the Lock to position setting is marked, then the dock will still appear and disappear to that locked position.
When the position is locked and you then middle click,,,the cursor jumps to Circle Dock when made visible.
This is intentional by design.
Is there a solution other than that presented that you would wish to happen???