can someone help me with these 4 issues.

can someone help me with these 4 issues.

i am setting up zoho desk, running into couple of issues.


1. i setup domain change to support.avigosystems.com, but when I go to the domain the SSL cert thats on the server shows that the site is unsecure.
- thats not good, I do not want customers to see this.

2. when i go to my support site the support.avigosystems.com this is support site for customer. I put my logo but next to the logo on the right there is my company name listed there. I dont need my compnay name 2 times. As my logo is already there. How can I remove the company name from there.

3. on support.avigosystems.com. How do I change the color of the background to black, currently it is blue.

4. I added a from address in the admin section of zohodesk, but it says not verified), but i never receive the verification email. I have sent the verification email many times now by clicking resend verification.

thanks