By all means do post pictures of the window you're encountering, but to clarify: The window in the attachment is what VoiceAttack itself would show (it may be colored differently if you have the dark theme enabled, or mention a beta version is available if you have the option to check for those enabled).
Clicking "Yes" would then take you to the VoiceAttack.com website where the installer can be downloaded.
Any other window would not be part of VoiceAttack itself, but rather a third-party addon.