You can't take PG2 out of context. I don't think it's for browsing... not with the lists.
And you can choose what kind of lists you want.
Myself, i use no IP-blocker. Specially not going to build my own list, i have better things to do.
Close to a necro-bump but anyway:
are only for browsing the HOSTS Manager would be the better way imho.
It's listed under free tools here:http://forums.comodo.com/index.php/topic,1731.0.html
(A Bluetack-product as well)