1. It looks like you've ignored my post regarding the contact form on your site. Oh well.
2. Is it OK to use "rotating" slot with blockadz?
pseudocode:
if (random(1,2) == 1):
display_blockadz_ad();
else:
display_other_ad();
3. We're displaying some ads in a member-only area of the website. Do you want a login/password for verification, for your staff or your bot?