Yes, you can upload your own images to top sliding gallery;
Yes, you can remove the top gallery on other pages and put anything you want;
Yes, you can edit navigation menu bar;
You can create a text object in an arc style using PhotoShop and upload it to template as image.
Also you can launch demo trial for this template here http://www.motocms.com/flash-templates/flash-moto-templates-type/45656.html and test it. If you like this system you can purchase it with changes you would make using demo!