Comodo and Vista

Why can’t i use comodo with Vista. Windows give me a warning

Hi ruudvos. It’s not supported yet. The firewall will be for version 3, due a month later (give or take).

A few related links:
https://forums.comodo.com/index.php/topic,6174.0.html
https://forums.comodo.com/index.php/topic,6635.0.html
https://forums.comodo.com/index.php/topic,5528.0.html
https://forums.comodo.com/index.php/topic,6713.0.html
https://forums.comodo.com/index.php/topic,5408.0.html
https://forums.comodo.com/index.php/topic,5387.0.html
https://forums.comodo.com/index.php/topic,6151.0.html
https://forums.comodo.com/index.php/topic,6258.0.html
https://forums.comodo.com/index.php/topic,5851.0.html
https://forums.comodo.com/index.php/topic,6818.0.html