Issues with Header Items & Enquiries

Just got your Theme a little over 24 hours but I have some challenges and some questions.

Challenges:

1. The Login/Register isn't working?

2. Cart Text and icon not showing as it should (I am using Option 8 with Header 12)? And it also shows differently when viewed in Mozilla and Chrome.

3. How do I Stop 'items' being visible alongside 'Shopping Cart' (cos it disfigures the row)? (This happens in Mozilla only, thereby disfiguring the Search and Cart Bar)

4. How do I adjust margin height above and below logo?

5. How do I use a different logo (cos size is different) for the Sticky Header?


I will appreciate if you guide me on how to fix the challenges above myself. Rather than doing it for me. It helps my learning curve.


Questions:

1. In Header 12, can I centralise the Logo and put menu on left and right of logo?

2. In Header 5, can I have menu items on the left side of the Logo (to replace the Search Bar) and also menu items on the right side of the Logo (to replace the icons)?


I await your swift response asap.


Thanks and Regards.