Hello, I'm having a lot of issues and really need some help! Just to start with a few..

Hello, I'm having a lot of issues and really need some help! Just to start with a few -
1. The CSS on the subscribe buttons via short code work intermittently, how can I fix this?
2. The registration popup does not work and loads in a new page un styled.
3. The CSS on the login widget doesn't seem to work.
4. When going through the register process and before I go through the payment gateway I receive a wordpress login bar at the top of the page, can this be removed?

Thanks that a good start for now!